not ready for production!
low-cost and small-sized ECU for speeduino firmware (Rev0.0.3 80 x 94 mm)
Integrated Wideband Lambda Controller with Bosch CJ125 and LSU 4.9
4-Layer highly integrated design - hand soldering possible but only recommended to people with really experienced soldering skills. Hardware is optimized for assembly by professional assembly manufacturer
supports 8 cylinder full sequential
8 high impedance injectors
8 active ignition coils
1 crankshaft sensor with MAX9926 VR-conditioner (optional Hall Input without MAX9926)
1 hall input for camshaft sensor
7 analog inputs: CLT, IAT, TPS, BAT, LMM, MAP, Spare 0-5V with optional bias resistor
1 baro sensor MPXH6115A/MPXHZ6250A/MPXH6300A/MPXH6400A
1 MAP sensor MPXH6115A/MPXHZ6250A/MPXH6300A/MPXH6400A
1 digital input for disco swaggering (aka. launch control)
Onboard Wideband Lambda Controller with Bosch CJ125 (LSU 4.9)
1 fuel pump out
1 idle valve out
1 tacho out (5/12V)
1 boost out
1 fan out
1 idle stepper motor out
USB programming interface with CP2102
16.11.2022: First draft V0.0.1 - More infos coming soon....
13.03.2023: Second draft V0.0.2 - changed wideband lambda controller to same design as in Blitzbox
20.04.2023: Version 0.0.3 - lots of changes, too much to write all down....
Link to the original speeduino project
Quick link to Rev0.0.3 schematic: https://github.com/oelprinz-org/Gewitterbox/blob/master/hardware/Rev0.0.3/schematics_gewitterbox_V0.0.3.pdf
Quick link to Rev0.0.3 iBOM: http://oelprinz.org/products/Gewitterbox/hardware/V0.0.3/iBOM/ibom.html
