README.md
View this project on CADLAB.io.

IRseeker-kicad

Used as replacement for IRseeker sensor and similar for Lightweight / Entry leagues with infra ball in Robocup Junior, based on STM32G431CBU6 and TSSP4038

With communication over I2C or Serial protocol.

Serial over TX_3V / RX_3V pins is only 3.3V tolerant!

Serial over TX3_5V / RX3_5V pins is 5V tolerant.

I2C is 5V tolerant.

Logic AND gates HEF4082BT at U2 and U4 are optional for chip at PC6 pin input to detect if any TSSP4038 detects ball.

AMS1117 part is not needed in case of powering from 3.3V source

Programmed by external STLINK or similar over SWD pins at J13 header.

]]>Basic serial code]]>

]]>Basic I2C code]]>

3D view from KiCad





Assembled images





Sponsored by






A big thanks to ]]>PCBway]]> for sponsoring my project! Their rapid-prototyping services provided top-quality PCB boards, streamlining the entire process from order to delivery. I was particularly impressed by their outstanding customer support, which was willing to change few details.