No SPI communication with Bosch CJ125 for LSU 4.9 - Networking, Protocols, and Devices - Arduino Forum
Wideband lambda sensor control shield for Arduino, with integrated bluetooth 4.0, and safely connectable to 12v. Controlduino 01S01V00. - Controlduino.
Lambda Controller CJ125 - Bylund Automotive
5pcs/lot new CJ125 30481 SOP24 Auomotive Chips for BOSCH Wide Oxygen Driver IC Car amplifier IC - AliExpress
I'm making a circuit to run a wide band O2 sensor for my truck and to display the ratio. General details on what is required. : r/arduino