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legailutin

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  1. Like
    legailutin reacted to TI_Trey in Quadcopter BoosterPack   
    I've been just editing the first post and adding updates there.  I just got back from MakerFaire, and I'm getting caught up.  I'll post a new update later today.
  2. Like
    legailutin got a reaction from GeekDoc in Nov-Dec 2013 Project of the Month Sponsors/Planning   
    Can I add my modest contribution? I would like to add three (3) Li-Ion 3.7v 1150mAh batteries to the prize pool.
     
     
    Will Post the pictures as soon as I get home tonight. I have used it in a project using schematics and parts of the LiPo boosterpack. It charges and works perfectly. I can share the Kicad schematics with the community when needed.
     
     
    A picture of all three batteries.

  3. Like
    legailutin reacted to bluehash in CC430 Kits Need TLC - Free to Caring Members   
    Following member items have been shipped.
    @dubnet @grahamf72 @legailutin @chibiace
  4. Like
    legailutin got a reaction from Rei Vilo in Hello from France   
  5. Like
    legailutin reacted to bluehash in CC430 Kits Need TLC - Free to Caring Members   
    Ok everyone, very big news to all those who registered for giving this kit some TLC.
    There was some mis-communication about the kits and TI came forward with free "Full Working($149)" kits for everyone who registered here!!. I have 13 kits for all those who offered some TLC for the kits.
     
    I may need a little help on shipping as these boxes are a little big. 
     
    Big thanks to Dang Dung and William Cooper, @@adrianF at TI. Thank you for helping us out.
     
    @@chibiace  @@cubeberg @@JWoodrell @@Rubi @@Automate @@grahamf72 @@oPossum @@dubnet @@roadrunner84 @@abecedarian @@rockets4kids @@legailutin @@Rickta59
  6. Like
    legailutin reacted to Automate in TI Back to School Promotion   
    It's available now http://e2e.ti.com/blogs_/b/msp430blog/archive/2013/08/25/back-to-school-sale-part-2-sa430.aspx
     
    Coupon code SA_BTS
  7. Like
    legailutin reacted to bluehash in CC430 Kits Need TLC - Free to Caring Members   
    Alright everyone, our good friends at TI let me know that there are few http://www.ti.com/tool/msp-expcc430rfx'>CC430 Sub-GHz RF Experimenter
  8. Like
    legailutin reacted to jpnorair in Yet Another Wireless Sensor Board   
    The power in general seems very high.  
    Your boards should be doing < 5uA in standby -- and 5 uA is generous on the high-side.   In active mode, there is some radio on-time and some MCU set-up time.  The MSP430 probably doesn't need more than 3mA to be active (check the datasheet, I don't use the G-series parts so I can't tell you from memory).  The RF unit probably uses on the order of 20mA for transmit and 15mA for receive.  check the datasheet on that, too.  The average current during active is the weighted average of the time spent in setup and the time spent in RF.  It's something easiest to measure on an oscilloscope.  
    To put things into perspective, on a WSN board I'm testing the standby current is 3.2 uA.  The average active mode current per one duty (about 800 us) is 4.3 mA.  This model is not terribly different from your model, except that there is a subtraction by a constant.  So, it might be just that you are testing during debugging (which adds some extra current), or it might be that you have a low resistance short somewhere, or it might be that you are not putting the RF module to sleep properly.  I would check those things.
  9. Like
    legailutin reacted to blankfield in ATX2CHARGER - switch your ATX into a car battery charger with MSP430 [UPDATED]   
    Hi everyone,

    I have idea to use msp430 and hacked atx power supply as a car battery charger. Simply msp430 will be used to control of charge process, different charging current, time, precharging and swichable load for accurate voltage measurement will be available.

    Done:

    * hacked atx to 17V
    * enclosure
    * schematics
    * pcb
    * functional code


    To do:
    * firmware development


    If anyone have some suggestions fell free to post within this topic, I'll be grateful.


    Simple description of operation:

    At first voltage measurement is initiated, user set type of car battery, capacity and charge strategy. While charging is started PWM signal control P-MOSFET to set correct current, feedback is taken from 5mR shunt resistor trough RC low-pass filter and software implementation of 3 order Chebyshev LP filter. Every 5 minutes charge process stops, load resistor is applied and voltage reading is taken. During charge process user can see actual voltage, current, elapsed time and estimated period to end of charging. If battery will be accidentally disconnected mcu stops charging process.  
     
    [uPDATE] 22.12.2012 ======================================================
     
    Results.
     
    ATX2CHARGER is now working, I've successfully charged some car batteries. In near future I need to finish firmware, add rest of options etc. Tomorrow I'll add attachments (sorce of firmware and gerbers).
     
     
    Final schematics:
        PCB:     Tests of working unit:  
     
    All media:
    http://imageshack.us/g/1/9930724/
    http://imageshack.us/g/1/9930688/
     
     
    main.c:
    /*==================================================================== * * ATX2CHARGER v1.0 * 2012 by blankfield <blank0field@gmail.com> * MSP430G2553 @ 16MHz, 3,3V * ===================================================================*/ /*==================================================================== * * headers and includes * ===================================================================*/ #include <msp430.h> #include <ti/mcu/msp430/csl/CSL.h> #include <stdio.h> #include <string.h> #include "msp430g2553.h" #include "main.h" #include "LCD2x16.h" /*==================================================================== * * constants and definitions * ===================================================================*/ //charge indicator animation const char bat0[8] = {0x0A, 0x1F, 0x11, 0x11, 0x11, 0x11, 0x11, 0x1F}; const char bat1[8] = {0x0A, 0x1F, 0x11, 0x11, 0x11, 0x11, 0x1F, 0x1F}; const char bat2[8] = {0x0A, 0x1F, 0x11, 0x11, 0x11, 0x1F, 0x1F, 0x1F}; const char bat3[8] = {0x0A, 0x1F, 0x11, 0x11, 0x1F, 0x1F, 0x1F, 0x1F}; const char bat4[8] = {0x0A, 0x1F, 0x11, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F}; const char bat5[8] = {0x0A, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F}; #define SWSTART BIT7 //P2.7 - START #define SWF1 BIT7 //P1.7 - F1 #define SWF2 BIT6 //P1.6 - F2 #define FIRNtap 15 //fir lp filter number of tap #define Vref (float)3.3 #define ADCRES (float)1023 #define R7resistor (float)4650 #define R9resistor (float)1005 #define R15resistor (float)0.005 #define Uconstant (float)((Vref/ADCRES)*((R7resistor+R9resistor)/R9resistor)) #define Iconstant (float)((Vref/ADCRES)/(R15resistor)) enum enumdisplay_menu {startup, measure_acc, settings, chargeing_params, chargeing_time, summary}; enum enumcharge_type {emergency, normal, mainterance_free}; enum enumaccu_voltage {U6V, U12V}; enum enumstate {idle, charge, discharge}; #pragma DATA_SECTION(ee_charge_type, ".mydata"); #pragma DATA_SECTION(ee_accu_capacity, ".mydata"); #pragma DATA_SECTION(ee_accu_voltage, ".mydata"); #pragma DATA_ALIGN(ee_charge_type, 1); #pragma DATA_ALIGN(ee_accu_capacity, 1) #pragma DATA_ALIGN(ee_accu_voltage, 1); /*==================================================================== * * variables * ===================================================================*/ //FLASH "EEPROM" VALUES unsigned char ee_charge_type; unsigned char ee_accu_capacity; unsigned char ee_accu_voltage; struct timeformat { char hours; char minutes; char seconds; }time; int time_prescale=0; int measurments[4]; float measured_charge_current = 0; float measured_charge_voltage = 0; float measured_discharge_current = 0; float measured_discharge_voltage = 0; float measured_idle_current = 0; float measured_idle_voltage = 0; float Iavg = 0; float Imax = 0; float Ucellmax = 2.5; float Ucelloptimum = 2.4; char accu_capacity = 75; char accu_voltage = U12V; char charge_type = normal; //char charge_time = 0; char charge_progress = 0; char elapsed_1s = false; char tempstring[20]; float DCV[10]; char display_level = startup; char state = idle; /*==================================================================== * * main() * ===================================================================*/ int main(int argc, char *argv[]){ CSL_init();// Activate Grace-generated configuration __delay_cycles(5000); init_mcu(); _delay_cycles(1000000); LCD2x16_Initialize(); __delay_cycles(5000); LCD2x16_WriteCommand(0x01); __delay_cycles(5000); ADC10CTL0 |= ENC;//Start ADC TA1CCR1 = 0; while(1){ control(); if (elapsed_1s){ sprintf(tempstring,"%1.2f;%1.2f;%1.2f;%1.2f;%1.2f;%1.2f;", measured_idle_voltage,measured_idle_current, measured_charge_voltage,measured_charge_current, measured_discharge_voltage,measured_discharge_current); int i; for (i=0; i<sizeof(tempstring); i++) { while (!(IFG2 & UCA0TXIFG)); UCA0TXBUF = tempstring[i]; } elapsed_1s=false; } switch(display_level){ case startup: menu_redraw(); __delay_cycles(25000000); display_level = measure_acc; menu_redraw(); break; case measure_acc: menu_redraw(); if (!(P2IN & SWSTART)) { beep_sound(); display_level=settings; menu_redraw(); } if (!(P1IN & SWF1)) { beep_sound(); if (accu_voltage == U12V) accu_voltage = U6V; else accu_voltage = U12V; menu_redraw(); } break; case settings: if (!(P2IN & SWSTART) && true) { beep_sound(); time.seconds=0; time.minutes=0; time.hours=0; Iavg=0; display_level = chargeing_params; state = charge; menu_redraw(); } if (!(P1IN & SWF1)) { beep_sound(); accu_capacity += 5; if (accu_capacity > 200) accu_capacity = 5; menu_redraw(); } if (!(P1IN & SWF2)) { beep_sound(); charge_type++; if (charge_type>=3) charge_type=0; menu_redraw(); } break; case chargeing_params: if (!(P2IN & SWSTART)) { beep_sound(); display_level=summary; state = idle; menu_redraw(); } if (!(P1IN & SWF1)) { beep_sound(); display_level=chargeing_time; menu_redraw(); } break; case chargeing_time: if (!(P2IN & SWSTART)) { beep_sound(); display_level=summary; state = idle; menu_redraw(); } if (!(P1IN & SWF1)) { beep_sound(); display_level=chargeing_time; menu_redraw(); } break; case summary: if (!(P2IN & SWSTART)) { beep_sound(); display_level=measure_acc; menu_redraw(); } break; } } } /*==================================================================== * * menu_redraw() * ===================================================================*/ void menu_redraw(void){ LCD2x16_GoTo(0,0); switch(display_level){ case startup: LCD2x16_WriteText("ATX2CHARGER v1.0"); LCD2x16_GoTo(0,1); LCD2x16_WriteText(" by blankfield"); break; case measure_acc: if (measured_idle_voltage <=1){ LCD2x16_WriteText("Check battery, "); LCD2x16_GoTo(0,1); sprintf(tempstring,"%01.2fV is too low ",measured_idle_voltage); LCD2x16_WriteText(tempstring); } else{ sprintf(tempstring,"Battery U=%02.2fV ",measured_idle_voltage); LCD2x16_WriteText(tempstring); LCD2x16_GoTo(0,1); //sprintf(tempstring,"P=%01.0f I= %02.2fA ", TA1CCR1*0.05, measured_idle_current); sprintf(tempstring,"Type F1:%02.0dV ",(accu_voltage*6)+6); LCD2x16_WriteText(tempstring); } break; case settings: sprintf(tempstring,"Set cap F1:%03.0dAh ",accu_capacity); LCD2x16_WriteText(tempstring); LCD2x16_GoTo(0,1); if (charge_type==normal) LCD2x16_WriteText("F2: standard "); if (charge_type==mainterance_free) LCD2x16_WriteText("F2: mainter.free"); if (charge_type==emergency) LCD2x16_WriteText("F2: emerg.charg."); break; case chargeing_params: sprintf(tempstring,"U=%02.1fV I=%02.1fA", measured_charge_voltage, measured_charge_current); LCD2x16_WriteText(tempstring); LCD2x16_GoTo(0,1); sprintf(tempstring,"U=%02.1fV I=%02.1fA", measured_discharge_voltage, measured_discharge_current); break; case chargeing_time: sprintf(tempstring,"Elapsed %2.0f:%2.0f:%2.0f", time.hours, time.minutes, time.seconds); LCD2x16_WriteText(tempstring); LCD2x16_GoTo(0,1); sprintf(tempstring,"Iavg=%2.2f ", Iavg); LCD2x16_WriteText(tempstring); break; case summary: LCD2x16_WriteText("Finished! "); LCD2x16_GoTo(0,1); sprintf(tempstring,"%2.0f:%2.0f:%2.0f @ %2.2f", time.hours, time.minutes, time.seconds, Iavg); LCD2x16_WriteText(tempstring); break; } } /*==================================================================== * * control() * ===================================================================*/ void control(void){ switch (state){ case idle: TA1CCR1=0; TA1CCR2=0; break; case charge: TA1CCR2=0; if ((measured_charge_voltage < (Ucelloptimum*3*(accu_voltage+1))) && (measured_charge_current < (accu_capacity/5/(charge_type+1))) && (TA1CCR1<1999)){ TA1CCR1++; } if (((measured_charge_voltage > (Ucelloptimum*3*(accu_voltage+1))) || (measured_charge_current > (accu_capacity/5/(charge_type+1)))) && (TA1CCR1>1)){ TA1CCR1--; } if (TA1CCR1 <=100 && measured_charge_voltage >= (Ucelloptimum*3*(accu_voltage+1))){ state = idle; display_level = summary; beep_sound(); } break; case discharge: TA1CCR1=0; TA1CCR2=1000; break; } } /*==================================================================== * * init_mcu() * ===================================================================*/ void init_mcu(void){ WDTCTL = WDTPW + WDTHOLD; char name[18]="AT+NAMEATX2CHARGER"; int i; for (i=0; i<18; i++) { while (!(IFG2 & UCA0TXIFG)); UCA0TXBUF = name[i]; } } /*==================================================================== * * measure() * interrupts from ADC * ===================================================================*/ void measure(void){ time_prescale++; if (time_prescale==999){ elapsed_1s=true; time.seconds++; //increase every 1s if(time.seconds==60){ time.seconds=0; time.minutes++; if(time.minutes==60){ time.minutes=0; time.hours++; } } } switch (state){ case idle: measured_idle_current = measurments[3]*Iconstant; measured_idle_voltage = measurments[0]*Uconstant; break; case charge: measured_charge_current = measurments[3]*Iconstant; Iavg = (Iavg + measured_charge_current)/2; measured_charge_voltage = measurments[0]*Uconstant; break; case discharge: measured_discharge_current = measurments[3]*Iconstant; measured_discharge_voltage = measurments[0]*Uconstant; break; } return; } /*==================================================================== * * beep_sound() * ===================================================================*/ void beep_sound(void){ TA0CCR1 = 1000; __delay_cycles(500000); TA0CCR1 = 0; return; } /*==================================================================== * * fir() * ===================================================================== WinFilter version 0.8 http://www.winfilter.20m.com akundert@hotmail.com Filter type: Low Pass Filter model: Chebyshev Filter order: 3 Sampling Frequency: 1000 Hz Cut Frequency: 6.000000 Hz Pass band Ripple: 1.000000 dB Coefficents Quantization: float Z domain Zeros z = -1.000000 + j 0.000000 z = -1.000000 + j 0.000000 z = -1.000000 + j 0.000000 Z domain Poles z = 0.981540 + j -0.000000 z = 0.990073 + j -0.036073 z = 0.990073 + j 0.036073 ***************************************************************/ float fir(float NewSample) { float FIRCoef[FIRNtap] = { 0.06499156895458164900, 0.06567519555537033900, 0.06626048168634461600, 0.06674435292740793500, 0.06712913054423083600, 0.06742809591680600000, 0.06768722943723189100, 0.06816788995605341200, 0.06768722943723189100, 0.06742809591680600000, 0.06712913054423083600, 0.06674435292740793500, 0.06626048168634461600, 0.06567519555537033900, 0.06499156895458164900 }; static float x[FIRNtap]; //input samples float y=0; //output sample int n; //shift the old samples for(n=FIRNtap-1; n>0; n--) x[n] = x[n-1]; //Calculate the new output x[0] = NewSample; for(n=0; n<FIRNtap; n++) y += FIRCoef[n] * x[n]; return y; } /*==================================================================== * * flashEraseSegment(int FarPtr) * ===================================================================*/ void flashEraseSegment(int FarPtr){ int *Flash_ptr; // local Flash pointer Flash_ptr = (int *) FarPtr; // Initialize Flash pointer FCTL1 = FWKEY + ERASE; FCTL3 = FWKEY; *Flash_ptr = 0; // dummy write to start erase while (FCTL3 & BUSY ); FCTL1 = FWKEY; FCTL3 = FWKEY + LOCK; } /*==================================================================== * * saveSettings(void) * ===================================================================*/ void saveSettings(void){ flashEraseSegment((int) 0xC000); FCTL1 = FWKEY + WRT; FCTL3 = FWKEY; ee_charge_type = (char)charge_type; ee_accu_capacity = (char)accu_capacity; ee_accu_voltage = (char)accu_voltage; FCTL1 = FWKEY; FCTL3 = FWKEY + LOCK; } /*==================================================================== * * loadSettings(void) * ===================================================================*/ void loadSettings(void){ charge_type = (char)ee_charge_type; accu_capacity = (char)ee_accu_capacity; accu_voltage = (char)ee_accu_voltage; }  
     
    main.h:
    #ifndef MAIN_H_ #define MAIN_H_ #define false 0 #define true 1 void menu_redraw(void); void control(void); void init_mcu(void); void buttons(void); void measure(void); void beep_sound(void); float fir(float NewSample); void flashEraseSegment(int FarPtr); void saveSettings(void); void loadSettings(void); #endif /* MAIN_H_ */  
    LCD2x16.c:
    // ----------------------------------------------------------------#include "LCD2x16.h"#include "msp430g2553.h"#define RS BIT3 // RS - P2.3 RW - GND#define EN BIT5 // EN - P2.5#define D4 BIT4 // D4 - P1.4#define D5 BIT5 // D5 - P1.5#define D6 BIT0 // D6 - P2.0#define D7 BIT1 // D7 - P2.1//Polish language characters//E6 B9 B3 EA F3 F1 9F 9C A5 BF CA C6 D1 A3 8C D3 AF 8F//? ? ? ? ?






















    atx2charger-firmware.zip
    gerbers-mirror.zip
    gerbers.zip
  10. Like
    legailutin reacted to JWoodrell in Yet Another Wireless Sensor Board   
    you gotta love that feeling of holding the first board you designed in your hand and knowing every nook and bend and whatnot about it, atleast for me
  11. Like
    legailutin got a reaction from JWoodrell in Yet Another Wireless Sensor Board   
    Hi,
     
    Finally found the time to populate the board and test it. Everything worked as planned. Programmed it using another LP as seen in the picture. 
    Then added 9v battery and set it up outside.
    Tested current consumption using my "poor quality" multimeter. In active mode, it uses 8.42mA and 3.65 mA in standby. I don' know why this feel like too much current ... Maybe it is.
     
    Now working on elaborating the code.
  12. Like
    legailutin got a reaction from Automate in Yet Another Wireless Sensor Board   
    Hi,
     
    Finally found the time to populate the board and test it. Everything worked as planned. Programmed it using another LP as seen in the picture. 
    Then added 9v battery and set it up outside.
    Tested current consumption using my "poor quality" multimeter. In active mode, it uses 8.42mA and 3.65 mA in standby. I don' know why this feel like too much current ... Maybe it is.
     
    Now working on elaborating the code.
  13. Like
    legailutin reacted to roadrunner84 in Yet Another Wireless Sensor Board   
    If you use a smd version of the header, the pins are bent sideways, you could manage to solder those bent pins to the holes of your chip footprint.
  14. Like
    legailutin got a reaction from sirri in Launchpad in Fritzing?   
    Actually, there is a Launchpad part for fritzing and I already used it once
    Search Launchpad on this page and import the library to Fritzing.
     
    Hope this helps.
  15. Like
    legailutin reacted to spirilis in Yet Another Wireless Sensor Board   
    What bitrate for the nRF24?  I find 250Kbps is needed for anything decently far... although you lose the auto-ack/auto-retransmit feature at that speed.
  16. Like
    legailutin reacted to GG430 in Sundial - Kids Clock with LEDs   
    In the past few month our older daughter woke up in the middle of the night once in a while. She didn't know whether it was late enough to get up and ready for Kindergarten. So she woke my wife and myself up and asked. Bad idea...
    I needed a solution for her without the need to read the clock. So I decided to build the "Sundial" clock for her 4th birthday. Well this idea came up maybe 2 month before her birthday. This brought me under pressure to complete it, but I had a good plan and it was ready the day before her birthday.
     

      It's driven by a MSP430G2553. It has one LED for the moon and one for the sun. The twelve LEDs for the clock are charlieplexed to four pins. The plexiglass is called endlighten and has some particles in it to enlight the entire area of the glass and not only the edges.
    The clock is off all the time. From 7am to 8am the sun and clock are on. From 6 to 7pm the moon and clock are on.
    Beside the moon is a capacitive sensing area behind the wood. It's just one button and turns on the clock and depending on the time 7am - 6pm the sun and 6pm - 7am the moon for 30 seconds.
    The video shows a bit of the details.
     

  17. Like
    legailutin reacted to jpnorair in Yet Another Wireless Sensor Board   
    There are quite a few areas that I think will short. OSHPark expects 0.15mm trace clearance. I usually design for 0.20mm trace & 0.20mm clearance with OSHPark, though.
     
    I agree that Eagle has a terrible UI. DipTrace has a much nicer UI, you should try it. There is a free, hobbyist version that would meet the requirements of this board. Its schematics are a bit uglier and I'm told the autoroute in Eagle is better, but I never use autoroute anyway -- I design only relatively simple mixed-signal and RF boards.
  18. Like
    legailutin reacted to roadrunner84 in Yet Another Wireless Sensor Board   
    Looking good, some remarks:
     
    the IRQ line is really close to the circular pad of the 470 ohm resistor, I'm afraid they might short eachother.
    try to avoid 90 gegrees angles (lice the GND, VCC and CSN lines of the nRF) as they are more prone to peel off of the board than weaker angles.
     
    7805 are very power unfriendly, are you going to battery power? If using AA cells, why not tap off of 3 NiMH or 2 Alakine cells for the 3.6 and use 3 Alkaline or 4 NiMH cells for the 5V? If you must go with a power regulator, try to use DC-DC or switching designs, linear regulators like the 78xx series basically "burn" the volts over the required voltage. (More correctly, the current draw will be equal, no matter the input voltage; hence the power usage increases with the input voltage)
     
    Further looks quite nice!
  19. Like
    legailutin got a reaction from RichardVowles in Yet Another Wireless Sensor Board   
    Hi,
    I've finally found my "cahones" and decided to become a doer, and hopefully more active on the forum.
    I've been working on his for more than a year on my free time and have learned a lot. However, nothing real have come out of this project until recently. With the recent release of energia library for nRF24L01P by spirillis, I decided to restart working on it. Anyway. I'll post what I've done so far and move along with the suggestions.
     
    I'm a noob, so I've gone the noob way:
      Breadboarded first using what I had in my noob bin (msp430g2553 , nRF24l01P, ds18b20, thermistor, 7805, lm358, 9v battery, couple of resistors and capacitors)   Used the launchpad schematics to get the components values.   Board Layout with fritzing. Eagle was too complicated for me.   Ordered the board thru Oshpark after exporting the gerbers. [ yay!!! I'm speaking like the pros :grin:)   Programming with Energia, so far everything is going ok. I attached the fritzing file as well as the oshpark rendering of the board. Please, take a look, let me know where I've gone wrong.
    YAWSB.zip



  20. Like
    legailutin got a reaction from bluehash in Yet Another Wireless Sensor Board   
    Hi,
    I've finally found my "cahones" and decided to become a doer, and hopefully more active on the forum.
    I've been working on his for more than a year on my free time and have learned a lot. However, nothing real have come out of this project until recently. With the recent release of energia library for nRF24L01P by spirillis, I decided to restart working on it. Anyway. I'll post what I've done so far and move along with the suggestions.
     
    I'm a noob, so I've gone the noob way:
      Breadboarded first using what I had in my noob bin (msp430g2553 , nRF24l01P, ds18b20, thermistor, 7805, lm358, 9v battery, couple of resistors and capacitors)   Used the launchpad schematics to get the components values.   Board Layout with fritzing. Eagle was too complicated for me.   Ordered the board thru Oshpark after exporting the gerbers. [ yay!!! I'm speaking like the pros :grin:)   Programming with Energia, so far everything is going ok. I attached the fritzing file as well as the oshpark rendering of the board. Please, take a look, let me know where I've gone wrong.
    YAWSB.zip



  21. Like
    legailutin got a reaction from SirPatrick in Yet Another Wireless Sensor Board   
    Hi,
    I've finally found my "cahones" and decided to become a doer, and hopefully more active on the forum.
    I've been working on his for more than a year on my free time and have learned a lot. However, nothing real have come out of this project until recently. With the recent release of energia library for nRF24L01P by spirillis, I decided to restart working on it. Anyway. I'll post what I've done so far and move along with the suggestions.
     
    I'm a noob, so I've gone the noob way:
      Breadboarded first using what I had in my noob bin (msp430g2553 , nRF24l01P, ds18b20, thermistor, 7805, lm358, 9v battery, couple of resistors and capacitors)   Used the launchpad schematics to get the components values.   Board Layout with fritzing. Eagle was too complicated for me.   Ordered the board thru Oshpark after exporting the gerbers. [ yay!!! I'm speaking like the pros :grin:)   Programming with Energia, so far everything is going ok. I attached the fritzing file as well as the oshpark rendering of the board. Please, take a look, let me know where I've gone wrong.
    YAWSB.zip



  22. Like
    legailutin got a reaction from jsolarski in Yet Another Wireless Sensor Board   
    Hi,
    I've finally found my "cahones" and decided to become a doer, and hopefully more active on the forum.
    I've been working on his for more than a year on my free time and have learned a lot. However, nothing real have come out of this project until recently. With the recent release of energia library for nRF24L01P by spirillis, I decided to restart working on it. Anyway. I'll post what I've done so far and move along with the suggestions.
     
    I'm a noob, so I've gone the noob way:
      Breadboarded first using what I had in my noob bin (msp430g2553 , nRF24l01P, ds18b20, thermistor, 7805, lm358, 9v battery, couple of resistors and capacitors)   Used the launchpad schematics to get the components values.   Board Layout with fritzing. Eagle was too complicated for me.   Ordered the board thru Oshpark after exporting the gerbers. [ yay!!! I'm speaking like the pros :grin:)   Programming with Energia, so far everything is going ok. I attached the fritzing file as well as the oshpark rendering of the board. Please, take a look, let me know where I've gone wrong.
    YAWSB.zip



  23. Like
    legailutin got a reaction from Rickta59 in Yet Another Wireless Sensor Board   
    Hi,
    I've finally found my "cahones" and decided to become a doer, and hopefully more active on the forum.
    I've been working on his for more than a year on my free time and have learned a lot. However, nothing real have come out of this project until recently. With the recent release of energia library for nRF24L01P by spirillis, I decided to restart working on it. Anyway. I'll post what I've done so far and move along with the suggestions.
     
    I'm a noob, so I've gone the noob way:
      Breadboarded first using what I had in my noob bin (msp430g2553 , nRF24l01P, ds18b20, thermistor, 7805, lm358, 9v battery, couple of resistors and capacitors)   Used the launchpad schematics to get the components values.   Board Layout with fritzing. Eagle was too complicated for me.   Ordered the board thru Oshpark after exporting the gerbers. [ yay!!! I'm speaking like the pros :grin:)   Programming with Energia, so far everything is going ok. I attached the fritzing file as well as the oshpark rendering of the board. Please, take a look, let me know where I've gone wrong.
    YAWSB.zip



  24. Like
    legailutin reacted to GeekDoc in Post a pic of your home work bench, get a ..   
    Once uploaded to 43oh, there's another button to include the pic in your post.
  25. Like
    legailutin reacted to energia in Testing the watch crystal   
    If you have used the Blink example unmodified then it uses delay() which is coming of the watchdog timer that is fed by the MCLK.
    I think this example done by xv4y should help you http://xv4y.radioclub.asia/page/5/
    xv4y implemented a small RTC library that uses the external crystal to keep time.
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