For anything related to the 'official' Speeduino boards (Eg v0.3, v0.4 etc)
#66113
Hola amigos.
Tego una board 0.4.3d ensamblada y al realizar el test de hardware encuentro.
El canal 1,3 y 4 de ignicion no encienden el led
y el canal 4 de inyector al aplicar el test encuiende despacio toma como 0.5 segundos en encender.
me pueden orientar que componentes debo revisar.
:?
#67858
check your original injectorwiring. Injectors need ground probably and not +?
How did you hook up your injectors, to ground?
Check fuses ...
Check LED orientation ...
Check your original vehicles wiring diagram and compare with your injectorwiring.
#67861
Speeduino grounds the powered injectors. Most "outputs" from Speeduino are grounding outputs.

Get the schematics for your board series to verify correct parts and correct orientation on the board — that includes LED polarity. Inspect for good and bad solder joints. Check all connections, voltages, etc. The board will often not function completely on USB power alone.
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