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nRF24L01+ bootloader for avr and other mcus

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What the heck is this thing?

It's a bootloader for AVR and other micros that can deliver your code to the MCU via cheap nrf24l01 wireless modules.

Is it good?

  • Clean architecture
  • Very portable, since it's based off antares
  • Easy to integrate external memory devices, since it supports several memory partitions.
  • Easy to add your own device-specific hacks.

Can I use it with arduino?

Yes, you can. The bootloader doesn't care where you got your file from. Be it arduino, avr-gcc, avr-brainfuck compiler, /dev/urandom or even astral ;)

Does it work with intel hex?

Not yet. rf24tool only accepts binary files. So either add -Obinary to your makefiles, or use srecord/hex2bin to get a binary file.

Does it work under windows?

No. Only Linux and other *nix flavors that have libusb. Patches welcome.

Does it work under Mac OS X?

No. Only Linux and other *nix flavors that have libusb. Patches welcome.

What about usb programming dongle?

See README.dongle

How to connect nrf24l01 with avr/arduino?

See README.compiling. If the relevant section is not enough for you, I suggest you give official nrf24l01 datasheet a read as well as avr's datasheet. I can't pack a book 'avr for dummies' into a small README file. Sorry.

Can I use nrf24l01 wired directly to Raspberry Pi/OpenWRT Router/Toaster?

Theoretically - yes. Practically - you'll need to implement spidev or gpio-bitbang adaptor for rf24tool. See rf24tool/adaptor-uisp.c as a reference. This is TODO, yet not a priority one.

Daunting documents worth reading

README.compiling - How to compile the bootloader for your device. README.hacking - If you want to help out by porting to new devices. README.dongle - How to get your programming dongle up and running. README.app - How to compile the userspace app.

Dude, this crazy stuff is too hard on my brains

And who said it will be easy? Go take a break, try again and send me some patches.