MAP-board 1.0
Important: the pinout of packed external sensor
can be found on
GenBoard/Manual/Wiring/ManifoldAbsolutePressureExternal
The "bare" version is ment to be mounted in the ECM case:
The adapter is used to hold the 400kPa MPXH6400 sensor. Motorola packages this nice sensor in SMD only, so a PCB was necessary for a clean install. Output is compatible with the more common MPX4250AP sensor, but features 400kPa range instead of 250kPa. Recommended for > 130kPa (1.3bar, 18psi) boost.
there are some simple extras onboard, like
- regulator (so it can be powered from 12V and there is a 5V output)
- thermometer (Temperature output)
The "bare"-board is ment to be mounted vertically in the Alubos case, perpendicular to v3.x
- the sensor nipple points directly towards the frontplate
- not too soft tube recommended, so the tube also fixes the sensor
- soldering all 6 pins (with bent leads) is recommended
- recommended to use some hotmelt after testing, for added strength
- the screwholes are normally not used, at least not to secure the board against v3.x. The sensor would point down if they were used !
Mounting of the 5V "bare" version
The image is taken before hotmelt is applied (at the connection of the boards and the sensor nipple).
When mounting onboard GenBoard/VerThree, for mechanical stiffness:
- recommended to connect all 6 pins
- some hotmelt helps for extra ruggeddness
- the pneumatic tube to the frontplate also secures the mounting
Mounting is normally done vertically, perpendicular to the v3.x PCB. The nipple is horizontal, points to the "VIV" type pneumatic connector mounted "through the frontplate". Notice that this sensor has small 5x3mm nipple, so
- either the smaller 5x3 mm VIV connector is needed
- or VIV connector that is 5x3mm on one side and 6x4mm on the other side
See GenBoard/Manual/PneumaticTube
Internal versions is practically 5V, to match the supply when mounted on GenBoard/VerThree. It's possible to order with 12V supply, for other applications, if you really know what you are doing.
Pinout of the 5V version
| pin nr. | signal | range | note |
| 1 | MAP output | 0 .. 4.8V | 20..400kPa |
| 2 | GND | 0V | |
| 3 | 5V in | 5V | max 10mA |
| 4 | temp out | 0.5 .. 4.5V | NTC, similar U(T) as CLT |
| 5 | GND internal | 0V | |
| 6 | not connected | - |
The first 3 pin is compatible with the MPX4250AP pinout.
Pinout of the 12V supply version
'''Important: while the 12V supply is a nice option for the external GenBoard/Manual/Wiring/ManifoldAbsolutePressureExternal, for the internal the 5V is what you likely need. The 12V is only for special applications, not suitable for direct mounting on GenBoard/VerThree.
Note that populated this way, the supply has a wide range, and the 5V is output, not input. Applying 5V to the 5V output is not supported, it might damage the unit. Use the 5V version if you want to power from 5V
| pin nr. | recommend color | signal | range | note |
| 1 | white | MAP output | 0 .. 4.8V | 20..400kPa |
| 2 | brown | GND | 0V | |
| 3 | red | 5V out | 5V | max 80mA. Useful for HALL, TPS, etc... |
| 4 | blue | temp out | 0.5 .. 4.5V | NTC, similar U(T) as CLT |
| 5 | - | GND internal | 0V | |
| 6 | grey | +12V in | 6.3 .. 16V |
See also
- GenBoard/Manual
- GenBoard/Manual/Config/ManifoldAbsolutePressure
- WebShop (see Genboard, sensors)