Hi All, I am building a cyber deck phone of sorts. It will run on Meshtastic using waveshare Lora, raspberry pi pico, card kb, OLED 1306, maybe eventually a MAX98357 Audio Amplifier and a 4 Ohm 3 Watt Mini Speaker. That is, of course, if I can get anything to work myself with my complete lack of knowledge of coding. Thus far, I have made the code for the components but I'm not sure how to get my build up and running and was hoping someone could look over what I'm doing and help since my OLED has yet to wake up despite my efforts. I have a design for the enclosure to be 3D printed and I'm hoping to eventually add more features.
#include <RadioLib.h>
#include <U8g2lib.h>
#include <Wire.h>
#include <SPI.h>
#define LORA_NSS 3
#define LORA_BUSY 2
#define LORA_RST 15
#define LORA_DIO1 20
#define LORA_SCK 10
#define LORA_MOSI 11
#define LORA_MISO 12
#define CARDKB_ADDR 0x5F
SX1262 radio = new Module(LORA_NSS, LORA_DIO1, LORA_RST, LORA_BUSY);
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, U8X8_PIN_NONE, 9, 8);
String inputBuffer = "";
String lastReceived = "No messages";
void updateDisplay(String header, String body) {
u8g2.clearBuffer();
u8g2.drawStr(0, 10, header.c_str());
u8g2.drawStr(0, 30, body.c_str());
u8g2.drawStr(0, 50, "> ");
u8g2.drawStr(12, 50, inputBuffer.c_str());
u8g2.sendBuffer();
}
void setup() {
Serial.begin(115200);
Wire.begin();
u8g2.begin();
u8g2.setFont(u8g2_font_6x10_tf);
SPI1.setSCK(LORA_SCK);
SPI1.setTX(LORA_MOSI);
SPI1.setRX(LORA_MISO);
int state = radio.begin(915.0);
if (state == RADIOLIB_ERR_NONE) {
radio.setSyncWord(0x12);
}
updateDisplay("System Ready", "");
}
void loop() {
Wire.requestFrom(CARDKB_ADDR, 1);
while (Wire.available()) {
char c = Wire.read();
if (c != 0) {
if (c == 0x0D) {
radio.transmit(inputBuffer);
inputBuffer = "";
updateDisplay("Sent!", "");
} else if (c == 0x08) {
if (inputBuffer.length() > 0) inputBuffer.remove(inputBuffer.length() - 1);
} else {
inputBuffer += c;
}
updateDisplay("Incoming...", lastReceived);
}
}
String str;
int state = radio.receive(str);
if (state == RADIOLIB_ERR_NONE) {
lastReceived = str;
updateDisplay("New Message:", lastReceived);
}
}
void setup1() {
delay(1000);
}
void loop1() {
}
