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al1fch

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  1. Thanks
    al1fch got a reaction from thesct22 in Connecting MSP430 launchpad to local broker through MQTT using ESP8266   
    HI !
    No MQTT with AT commands on ESP6266 IMHO !! (among the several AT firmwares I know)
    You can use Arduino IDE (+ ESP8266 core) to flash your ESP-01 with your own application receiving  data through UART and publishing data to an MQTT broker (use pubsub library)
    (WEMOS D1 mini is a good alternative to ESP-01 with it's good 3V3 regulator, some passive components, USB interface for easy developping...)
     
  2. Like
    al1fch got a reaction from jsolarski in [SOLVED] Firmware upgrading incident on MSP430FR4133 Launchpad   
    I couldn't solve the problem with Mspdebug
    Solved with CCS Cloud on Windows :  On Debug menu  I could launch 'Recovery' then 'Update ' 🙂
    Launchpad is now OK... next step : test again  on Unbuntu 18.10  (without modemmanager holding TTY/ACM0....)
    OK with last Energia running on Ubuntu 18.10 (32 bit   libmsp430.so  coming Energie replaced  by 64 bit one,)
  3. Like
    al1fch got a reaction from Fmilburn in ESP8266 with MSP430G2553 launchpad   
    Hello
     
    9600 bauds was OK for 'old' AT firmwares, check Serial.begin(115200) for 'recent' ESPxx modules.
     
    +only  250mA avaliable -> some Vss drop oup during strong radio +20dBm TX pulses, may cause 'unwanted' resets
    + so called "3V3" is 3.55V on my two MSP2553 Launchpad,   OK but 'high end' for ESP8266 chip (3.6V)
  4. Like
    al1fch got a reaction from Fmilburn in ESP8266 with MSP430G2553 launchpad   
    Hello
     
    9600 bauds was OK for 'old' AT firmwares, check Serial.begin(115200) for 'recent' ESPxx modules.
     
    +only  250mA avaliable -> some Vss drop oup during strong radio +20dBm TX pulses, may cause 'unwanted' resets
    + so called "3V3" is 3.55V on my two MSP2553 Launchpad,   OK but 'high end' for ESP8266 chip (3.6V)
  5. Like
    al1fch got a reaction from igor in CC3200 LaunchPad Pins Map   
    Considering P58-3V3 jumper I suggest to remove it on this pin map
     
    This short is dangerous for this pin :
    -in digital output mode
    -in ADC mode (ADC input not 3V3 tolerant  : 1,8V absolute max, 1,46V full scale )
     
    Maybe we could suggest "Remove this jumper as soon as playing with out of the box demo is finished" !!
  6. Like
    al1fch reacted to abc in Embedded for a 10 year old?   
    Raspberry PI sounds like a great option, but got to stick to the budget. And the budget is tiny.
     
    On the last Mini Maker fair, I saw a Raspberry PI-looking computer that they said was purchased in Oregon for $10, case included. Any idea what that was? 
     
    Also, I've heard there was some sort of a giveaway very recently, or something that was described as "Raspberry PI on steroids"? Is that still around? 
     
     
    Thank you everyone and I hope this thread is not too OT!
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