FlippIR: IrDA + motion add-on for the Flipper Zero

FlippIR is a small add-on board for the Flipper Zero that gives it a real

IrDA transceiver (Vishay TFBS4711) and an accelerometer (ST LIS2DE12) on the

GPIO header. The Flipper's own IR port is a 38 kHz remote-control port and

cannot talk to a Game Boy Color or to the Pokewalker/DS IrDA link; FlippIR

puts the transceiver on the STM32's USART1 IrDA pins (GPIO 13/14), so it can.

It runs Flipwalker (a Pokewalker on the Flipper, verified with

HeartGold/SoulSilver) and FlipGift (Gen II Mystery Gift to a real Game Boy

Color cart). 26.4 x 12.5 mm, two layers, 0603 passives, stands upright on

pins 9-18. Documentation: github.com/Jackv-makes/FlippIR-hardware

Assembly

Eleven SMD parts on the top side plus a 10-pin right-angle 2.54 mm header

(hand soldered). The accelerometer group (U2, C3, R3, R4) can be left off

for an IR-only board; the IR side does not use them. Check U1's and U2's

rotation in the placement preview: U1's lenses face away from the header.

Firmware

Flipwalker: github.com/Jackv-makes/Flipwalker

FlipGift: github.com/Jackv-makes/FlipGift

FlippIR: github.com/Jackv-makes/FlippIR-Hardware

License

Non-commercial. Build it for yourself, modify it, share it with credit.

DO NOT SELL BOARDS, KITS OR ASSEMBLED UNITS MADE FROM IT.

CC BY-NC-SA 4.0

(https://creativecommons.org/licenses/by-nc-sa/4.0/).

Disclaimer

Hobby project by a non-engineer. The board runs off the Flipper's 3.3 V pin;

check part orientation and the 9 / 3V3 marking before plugging it in. The

diode only protects against plugging it in backwards. Provided as is.