This is the result of me trying to understand longan nano spi used with a sensor.
It contains various examples that should be reusable in other code
- Serial output with printf()
- Using RGB LED of Longan Nano
- Read onchip temperature and reference voltage
- Init SPI
- Use BME280 sensor driver from Bosch with SPI
- Use 160x80 OLED SPI LCD
| Nano | BME280 |
|---|---|
| 3V3 | Vcc |
| G | Gnd |
| A4 (NSS0) | CSE |
| A5 (SCK0) | SCL |
| A6 (MISO0) | SDO |
| A7 (MOSI0) | SDA |
| Nano | USB2Serial | Comment |
|---|---|---|
| 3V3 | Vcc | not needed if powered via USB or other |
| Gnd | Gnd | |
| A9 (T0) | Rx | |
| A10 (R0) | Tx | not needed if flashing via USB/DFU or JTAG |
- Author Joachim Banzhaf
- License Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
why do you find valuable resources only after it is too late. Ok I2C will be easier now :)