- Stepper idle control through board mounted DRV8825 accessory PCB
- VR conditioning through board mounted VR conditioner accessory PCB
Like the official Speeduino boards, the NO2C requires igniter driven coils and a conditioner for crank/cam signals that aren't 5v square-wave. The board is designed to accept the official Speeduino conditioner board for signals that do not meet the requirements.
NO2C v0.1.x
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Uses the AMP MTA-100 or Molex KK100/KK254 connector system and through hole components
### v0.1.0
- Had flaws which caused the Arduino USB connector to interfere with the boards solder pads
- lacked tachometer output
- was never released
### v0.1.1
- corrected the issue mentioned above
- added tachometer output
NO2C v0.2.x
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Uses the Molex Micro-Fit 3.0 connector system and through hole components. The Micro-Fit connector is used as a computer power connector and there are several manufacturers, it's known generically as 3mm connector.
For some tips that will help make the assembly of your board a success: **[v0.2.x Assembly Tips](/en/boards/3rd_party/wtmtronics/V02x_Assembly_Tips "wikilink")**
A daughter board that stacks on top of the NO2C v0.2.x and vCx boards to add the features below. The daughter boards are hybrid surface mount/through hole, see features below for which parts are through hole.
### DB1 (Scraped)
Makes it easy to add additional general outputs, and can be populated to add all the features below.
- 4 low current outputs (through hole)
- 2 general digital inputs (protected)
- 1 analog input (protected)
- Flex-fuel input (protected)
- Barometric pressure sensor (provides constant correction vs power on base)
### DB2
Makes it easy to add additional coil outputs, and can be populated to add all the features below.
With the low current outputs you could reconfigure two of the medium/high current outputs on the NO2C to act as injector drivers. To do this you will have to make minor changes to the firmware before programming the Arduino.