Arduino Nano references and other stuff
Arduino Mega
- https://store.arduino.cc/arduino-mega-2560-rev3
- LED_PIN = 13
- USB : "USB Serial Device (COM10)"
- PlatformIO : board = megaatmega2560
- avrdude: Device signature = 0x1e9801
nrf24L01 - Interfacing with Arduino Mega
- https://www.arduino.cc/en/Reference/SPI
- MOSI - 51 or ICSP-4
- MISO - 50 or ICSP-1
- SCK - 52 or ICSP-3
- CSN - 53 (SPI:SS - Slave Select)
- CE -
- GND and VCC of the NRF24L01 are connected to GND and 3.3V of the Mega.
Arduino Nano
HW
- LED_BUILTIN = 13 (orange) ... shared with SPI::SCK PIN !!!
- PlatformIO : board = nanoatmega328
- PlatformIO : monitor_speed = 57600
- avrdude: Device signature = 0x1e950f (probably m328p)
nrf24L01 - Interfacing with Arduino Nano
- MISO - D12 (SPI:MISO)
- MOSI - D11 (SPI:MOSI)
- SCK - D13 (SPI:SCK)
- CSN - D10 (SPI:SS - Slave Select)
- CE - D9 (Chip Enable)
- Sets whether module is in RX or TX mode.
- In RX mode HIGH indicates that he wants to receive.
- In TX mode pulse sends one packet of data. - GND and VCC of the NRF24L01 are connected to GND and 3.3V of the Nano.
nrf24L01 - Resources :
- https://medium.com/@benjamindavidfraser/arduino-nrf24l01-communications-947e1acb33fb
- https://forum.arduino.cc/t/simple-nrf24l01-2-4ghz-transceiver-demo/405123
- https://create.arduino.cc/projecthub/muhammad-aqib/nrf24l01-interfacing-with-arduino-wireless-communication-0c13d4
USBasp - PROGRAMMER
- https://www.arduinoslovakia.eu/blog/2021/3/usbasp---windows-10-ovladac?lang=en
- DRIVERS : https://zadig.akeo.ie/
Platform IO IDE
- USB\VID_03EB&PID_C7B4 : (Windows10 >> Device Manager >> Universal Serial Bus devices >> USBasp)
- zadig-2.7.exe drver : WinUSB(v6.1.7600.16385)
- doesnot work with PaltformIO (avrdude) - https://docs.platformio.org/en/latest/platforms/atmelavr.html#upload-using-programmer
- TERMINAL window :
avrdude: Warning: Found USB device "USBasp" with old VID/PID! Please update firmware of USBasp!
- USB\VID_16C0&PID_05DC : (Windows10 >> Device Manager >> Universal Serial Bus devices >> USBasp)
- zadig-2.7.exe drver : WinUSB(v6.1.7600.16385) - aka libusb
- does work with PaltformIO (avrdude) - https://docs.platformio.org/en/latest/platforms/atmelavr.html#upload-using-programmer
Arduino ISP: Easily burn the bootloader back into an Arduino with an ISP programmer. Don't buy an ISP programmer; use another Arduino as a Free ISP.
- https://www.best-microcontroller-projects.com/arduino-isp.html
- https://www.instructables.com/How-to-use-Arduino-Mega-2560-as-Arduino-isp/
- https://docs.arduino.cc/built-in-examples/arduino-isp/ArduinoISP
The Arduino MEGA above is programming an Arduino UNO connecting D51-D11, D50-D12, D52-D13, GND-GND, 5V-5V and D10 to RESET. This type of board needs a 10µF electrolytic capacitor connected to RESET and GND with the positive (long leg) connected to RESET. The capacitor has to be placed after the programmer board has been loaded with the ISP sketch.
The 10µF electrolytic capacitor connected to RESET and GND of the programming board is needed only for the boards that have an interface between the microcontroller and the computer's USB, like Mega, UNO, Mini, Nano. Boards like Leonardo, Esplora and Micro, with the USB directly managed by the microcontroller, don't need the capacitor.