Jump to content

Entrax

Members
  • Content Count

    5
  • Joined

  • Last visited

About Entrax

  • Rank
    Noob Class

Profile Information

  • Location
    Germany
  1. Entrax

    NRF24L01 help. Does not work.

    With capacitor doesnt work. Default SPI doesnt work
  2. Entrax

    NRF24L01 help. Does not work.

    Can i change the default SPI settings to my Pins? Power (3,3V) and Ground are connected, but not a capacitor between ground and Power (read in tutorials). I have change to default SPI, it doesnt work :/
  3. Hello I have problems with the two NRF24L01 and two tm4c123gxl. I can not get it running. Pins 1. Tm4c123gxl (RX): PC_6 (CE), PD_2 (MISO), PD_3 (MOSI), PD_1 (CS), PD_0 (SCK), PE_1 (IRQ) Pins 2. Tm4c123gxl (TX): PC_7 (CE), PD_2 (MISO), PD_3 (MOSI), PD_1 (CS), PD_0 (SCK), PE_1 (IRQ) I will use a simply Sketch. I have found this in the Forum [Energia Library] Nordic nRF24L01+ library I have download this Enrf24_v1_8.zip from the Forum. Enerf24_RXdemo #include <Enrf24.h> #include <nRF24L01.h> #include <string.h> #include <SPI.h> Enrf24 radio(PC_6, PD_1, PE_1); const uint8_t rxaddr[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0x01 }; const char *str_on = "ON"; const char *str_off = "OFF"; void dump_radio_status_to_serialport(uint8_t); void setup() { Serial.begin(9600); SPI.begin(); SPI.setDataMode(SPI_MODE0); SPI.setBitOrder(MSBFIRST); radio.begin(); // Defaults 1Mbps, channel 0, max TX power dump_radio_status_to_serialport(radio.radioState()); radio.setRXaddress((void*)rxaddr); radio.enableRX(); // Start listening } void loop() { char inbuf[33]; dump_radio_status_to_serialport(radio.radioState()); // Should show Receive Mode while (!radio.available(true)) ; if (radio.read(inbuf)) { Serial.print("Received packet: "); Serial.println(inbuf); if (!strcmp(inbuf, str_on)) Serial.println("HIGH"); if (!strcmp(inbuf, str_off)) Serial.println("LOW"); } } void dump_radio_status_to_serialport(uint8_t status) { Serial.print("Enrf24 radio transceiver status: "); switch (status) { case ENRF24_STATE_NOTPRESENT: Serial.println("NO TRANSCEIVER PRESENT"); break; case ENRF24_STATE_DEEPSLEEP: Serial.println("DEEP SLEEP <1uA power consumption"); break; case ENRF24_STATE_IDLE: Serial.println("IDLE module powered up w/ oscillators running"); break; case ENRF24_STATE_PTX: Serial.println("Actively Transmitting"); break; case ENRF24_STATE_PRX: Serial.println("Receive Mode"); break; default: Serial.println("UNKNOWN STATUS CODE"); } } Enrf24_TXdemo #include <Enrf24.h> #include <nRF24L01.h> #include <string.h> #include <SPI.h> Enrf24 radio(PC_7, PD_1, PE_1); // CE, CSN, IRQ const uint8_t txaddr[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0x01 }; const char *str_on = "ON"; const char *str_off = "OFF"; void dump_radio_status_to_serialport(uint8_t); void setup() { Serial.begin(9600); SPI.begin(); SPI.setDataMode(SPI_MODE0); SPI.setBitOrder(MSBFIRST); radio.begin(); // Defaults 1Mbps, channel 0, max TX power dump_radio_status_to_serialport(radio.radioState()); radio.setTXaddress((void*)txaddr); } void loop() { Serial.print("Sending packet: "); Serial.println(str_on); radio.print(str_on); radio.flush(); // Force transmit (don't wait for any more data) dump_radio_status_to_serialport(radio.radioState()); // Should report IDLE delay(1000); Serial.print("Sending packet: "); Serial.println(str_off); radio.print(str_off); radio.flush(); // dump_radio_status_to_serialport(radio.radioState()); // Should report IDLE delay(1000); } void dump_radio_status_to_serialport(uint8_t status) { Serial.print("Enrf24 radio transceiver status: "); switch (status) { case ENRF24_STATE_NOTPRESENT: Serial.println("NO TRANSCEIVER PRESENT"); break; case ENRF24_STATE_DEEPSLEEP: Serial.println("DEEP SLEEP <1uA power consumption"); break; case ENRF24_STATE_IDLE: Serial.println("IDLE module powered up w/ oscillators running"); break; case ENRF24_STATE_PTX: Serial.println("Actively Transmitting"); break; case ENRF24_STATE_PRX: Serial.println("Receive Mode"); break; default: Serial.println("UNKNOWN STATUS CODE"); } } When i am upload this, i don't see the Sending objects. I see only in both Serial.monitor this: "Enrf24 radio transceiver status NO TRANSCEIVER PRESENT". Can someone help me?
  4. Entrax

    Connect LCD Display over I²C

    Ok, thanks for your information. Sorry, i will search in the Forum. I will buy a logic level converter.
  5. Hello I hope you can understand my english I have a texas instruments tm4c123gxl with a SainSmart IIC/I2C/TWI Serial 2004 20x4 LCD Module. I will connect this Display over I²C. For the 5V Supply voltage i have use the VBus on the tm4c... For the SDA/SCL i have use the pin PA6 and PA7. Does it work like this? or need a Logic Level Converter - Bi-Directional for the SDA/SCL Line? from 3,3V to 5V. I have use a Pullup resistor for the Line SDA/SCL, how in the datasheet from the tm4c. And i have use this Code: #include <Wire.h> #include <LiquidCrystal_I2C.h> LiquidCrystal_I2C lcd(0x3F, 20, 4); // set the LCD address to 0x20 for a 16 chars and 2 line display void setup() { lcd.init(); // initialize the lcd // Print a message to the LCD. lcd.backlight(); lcd.print("Hello, world!"); } void loop() { } But my display show nothing only LED backlight.
×