AnalogX is a compact 4 channel Analog to CAN I/O expander, specially designed for the harsh automotive electrical environment.

Analogx2 top.jpg

AnalogX provides 4 buffered and protected 0-5v sensor inputs and can broadcast the sensor values between 1 and 255Hz. It also provides a 0.5A 5v reference for powering sensors.

Parts in the Kit

In the kit you will receive:

  • AnalogX2 module
  • Note Cabling is available separately, depending on how you design your sensor layout.

Harness / Cabling

AnalogX is designed for plug and play connection into Autosport Labs CAN bus networks and sensors. Parts and cables shown are available individually. Refer to the part numbers below to create your own sensor configuration.

CAN bus connection to RaceCapture

AnalogX CAN connection.jpg

SKU Description
ASL_DUAL_CAN_HUB Powered, 8 port dual CAN bus hub kit
CAN extension cable, M8 4P female to M8 4P male, 0.5 - 4 Meter lengths

Sensor Connections

AnalogX plug and play sensors.jpg

SKU Description
ASL_4X_SENSOR_SPLITTER 4X sensor expander
Single channel sensor extension cable
ASL_LINEAR_TEMP_M8 Linear temperature sensor
ASL_10_BAR_DELPHI3_M8 10 bar (150 PSI) pressure sensor
ASL_150_BAR_DELPHI3_M8 150 bar (2175 PSI) pressure sensor
ASL_M8_SENSOR_PIGTAIL_2M Single sensor pigtail for custom sensor connection, 2 Meters

Bare pigtails

For a custom or non-plug and play installation, these bare pigtail cables are available for connecting AnalogX:

SKU Description
ASL_DEVICE_CAN_PIGTAIL_1M CAN + power pigtail for connecting device, M8 4P male to bare wires, 1 meter
ASL_M8_QUAD_SENSOR_PIGTAIL_2M M8 8P male to bare wire quad sensor pigtail, 1M, 24AWG

See the Wiring guide for pinout information.

Compatible Sensors

AnalogX is compatible with any 0-5v voltage input; the voltage is broadcast over CAN bus with the value range of 0 - 5000mV.

Use the capabilities provided by the receiving data system to translate the raw voltage to a meaningful real-world value, such as pressure, temperature, distance, and so on.

RaceCapture / PodiumConnect systems

Setting up AnalogX in RaceCapture is easy: Go to Setup / CAN Channels and select the preset for AnalogX.

This will bring in the basic mapping with the default 0-5v scaling. From here, you can edit each channel to customize the formula to match your sensor's voltage scaling.

  • Note - RaceCapture's CAN mapping features currently only supports sensors with a linear (straight-line) response. Sensors with a curved response, such as the Extended Range Temperature sensor is based on a thermistor design, and will not work with the built-in direct CAN mapping. We recommend using a temperature sensor with a linear response, such as the Autosport Labs Linear Temperature Sensor, Texense Liquid Temperature Sensor or similar.

Setting CAN baud rate

The default baud rate for AnalogX is 1M. Ensure this matches the setting under Setup / CAN bus settings.

Selecting the AnalogX preset

Select the starter CAN preset for AnalogX. This will bring in the basic 0-5v mapping, which you can then calibrate further using the CAN mapping conversion formula.

Analogx2 preset app.jpg

Calibrating Sensors attached to AnalogX

Navigate to Setup / CAN mapping, and edit the channel you wish to customize.

Select the channel

Touch the channel selection drop down and select the channel that matches your sensor.

  • Note, it's recommended you use the preset name for your channels; if no channel exists that matches your sensor, you can customize the channel name, units, and min/max values directly

Sensor Conversion Formulas

AnalogX reports it's raw value from 0-5000mV. You can use the formula to scale and offset the raw value to a real-world value.

Linear Fluid Temperature Sensor

The Autosport Labs Linear Fluid Temperature (ASL_LINEAR_TEMP_M8) sensor has a 10mV/C scaling, with a 0.5V offset at 0C.

Linear temp sensor analogx scaling.png

10 bar / 150 PSI pressure sensor

The Autosport Labs 10 bar pressure sensor (ASL_10_BAR_DELPHI3_M8) has the following calibration / range:

(0 - 10 bar / 150 PSI range)

  • 0.5v 0 bar / = 0 PSI
  • 4.5v = 10 bar / 150 PSI

The sensor has a 4000mV range between min and max values, with a 500mV offset.


The offset is calculated based on the 500mV offset of the sensor (500mv * 0.375 = 18.75)

for 0-150 PSI use the formula: RAW * 0.0375 - 18.75

  • Note:: The 0.375 value was derived from the formua: 150 PSI / 4000mV = 0.0375 PSI/mV

AnalogX 150PSI oil pressure example formula.png

150 Bar / 2175 PSI pressure sensor

The Autosport Labs 150 bar pressure sensor (ASL_150_BAR_DELPHI3_M8) has the following calibration / range:

(0 - 150 bar / 2175 PSI range)

  • 0.5v = 0 bar / 0 PSI
  • 4.5v = 150 bar / 2175 PSI

for 0-2175 PSI, use the formula: RAW * 0.5437 - 271.85

Texense Liquid Temperature Sensor

This sensor has a range of -50 to 150C and has a 22.5mV/C calibration.

0.25v = -50C 4.75v = 150C (200C sweep)

The sensor has a 4500mV range between -50C and 150C, with a 250mV offset.

Therefore, 200C / 4500mV = 0.04444 C/mV

The offset is calculated based on the 250mV offset of the sensor (250mV * 0.0444444 = 11.1111)

The offset is further adjusted by the starting range of the sensor (-50C)

Resulting formula: RAW * 0.04444 - 61.1111

Texense Liquid temperature sensor CAN channel mapping.png

  • Note you can convert the resulting value to Fahrenheit by selecting the C -> F option in the Formula Conversions Tab.

Other sensors

Please refer to these manufacturer's user guide on how to map data using the provided AnalogX CAN protocol.


Power and CAN

  • Connector: M8 4P Male, A coding

M8 4P male pinout.jpg

Pin Connection Notes
1 CAN low
2 Power Red, 12-14v / 50mA
3 CAN high
4 Ground Black

Power is standard automotive 12-14v (nominal).

Sensor connections

  • Connector: M8 8P Female, A coding

M8 8P female pinout.jpg

Pin Connection Notes
1 Analog/Digital 1
2 Analog/Digital 2
3 Analog/Digital 4
4 Vref 5v @ 1A max current, combined with pin 6
5 Ground
6 Vref 5v @ 1A max current, combined with pin 4
7 Analog/Digital 3
8 Ground
  • Note: The AnalogX inputs are very high impedance, allowing connection to existing circuits / sensors without affecting the reading of that circuit. As such, no pull-up or pull-down resistors are provided and must be added externally if needed.

DIP switch settings

You can access the DIP switches by removing the end plate on the CAN + power side. These switches enable an number of options:

Switch Function Description
1 Termination Set to ON to enable CAN termination
2 Address offset 1 Used to select the base CAN address
3 Address offset 2 Used to select the base CAN address
4 CAN Baud Rate OFF to enable 1M (default), ON to enable 500K

Analogx2 dip switch.jpg

CAN termination

AnalogX is not terminated by default. You can enable termination by switching the termination DIP switch to ON.


You can mount AnalogX2 to any flat mounting service. For best performance and reliability, keep away from sources of heat.


No CAN data

  • Double check the CAN bus connections
  • Verify the CAN baud rate is compatible with the AnalogX configuration (1M by default, 500K enabled with DIP switch)
  • Verify your CAN bus termination is correct. (Not terminated by default, enabled with DIP switch)
  • Simplify your CAN bus network: Try making AnalogX the only other CAN device on the network, just as a test.
  • Check for short circuits / over-current on the 5v reference. If too much current is drawn from the 5v reference, AnalogX may shut down in self-protection mode.

Data is being received, but it is incorrect

Basic mapping test

Try simplifying the mapping to verify the correct data is transmitted.

  • Go into the software for the receiving system, and set the CAN formula to multiply by 1 and add 0 and divide by 1 , and unsigned integer. and update the software settings.
    • This will cause the receiving system to display the raw millivolt (mV) value from AnalogX.
  • Disconnect the sensors from AnalogX.
  • For each AnalogX input perform the following test:
    • Connect the input to AnalogX's ground. Your receiving system should show very close to 0, which is 0 volts.
    • Connect the input to AnalogX's 5v reference. Your receiving system should show very close to 5000, which represents 5000mV.
  • Note: The AnalogX inputs are very sensitive and high impedance to prevent affecting the readings of existing circuits. Therefore, if the inputs are disconnected, it will 'float' and may show random readings.

If you can confirm these readings, then perform the additional steps:

  • For each AnalogX input, re-connect your sensor.
    • Measure the voltage right where it enters AnalogX.
    • Compare that with the reading on the receiving system. The value should be the voltage X 1000, translated to mV. Example: 2.5v measured should show 2500 on the receiving system.

If you can verify received millivolt value equals the measured voltage at the AnalogX input, then you know the correct value is being transmitted to the system, and you can focus on mapping the raw millivolt value to the real world temperature, pressure, or etc. Consult the sensor manufacturer and the system to determine the proper mapping of the sensor you are using.


Feature Description
Analog sensor input voltage range 0 - 5v
DAC resolution 12 bit SAR
Sample output format 0 - 5000mV
Input impedance Greater than 10 Meg Ohm
Input voltage protection 100v
CAN baud rate 1M and 500K, jumper configurable
Address Space 4 separate address spaces allows up to 4 AnalogX modules to operate on the same CAN network. (DIP switch configurable)
Power input and connections 9 - 15volts, protected to 40v (intermittent)
Harness M8 4P Male for power + ground, M8 8P for sensor connection
Weight 100gm (approximately)
Dimensions 60 x 60 (approximately)
Environmental IP65, 0-85C

AnalogX CAN bus API


The CAN bus API provides the configuration and control interface for AnalogX

CAN base ID

CAN base ID is 0xE4600 (935424)

Adjusting Base ID

The base address is determined by the state of the ADR1 and ADR2 DIP switches, accessible behind the power + CAN end plate. By default, the DIP switches are off.

  • Switching on ADR1 will add 256 to the base ID
  • Switching on ADR2 will add 512 to the base ID.

The combination of jumper settings will allow up to 4 AnalogX units to coexist on the same CAN bus.

ADR2 switch ADR1 switch Address
Off Off 0xE4600 (935424)
Off On 0xE4700 (935680)
On Off 0xE4800 (935936)
On On 0xE4900 (936192)

CAN Baud rate

1M and 500K rates are supported

1M is enabled by default; switch on the Baud DIP switch to enable 500K data rate.

CAN Messages


The announcement message is broadcast by the AnalogX upon power up.


CAN ID: Base + 0x0 (0)

Offset What Value
0 Channel Count Total number of channels on device
1 Current sample rate, in Hz
2 Reserved
3 Reserved
4 Reserved
5 Major Version Firmware Major Version Number
6 Minor Version Firmware Minor Version Number
7 Patch Version Firmware Patch version number

Configuration Group 1

Configures options for AnalogX.

Send this message to AnalogX to configure runtime settings. Settings are saved in flash memory and will be preserved across power cycles.

  • Note: To read the current settings, broadcast a message with this CAN ID with no data (data length of 0) - AnalogX will reply with the current configuration.


CAN ID: Base + 0x3 (3)

Offset What Value
0 Sample Rate Rate to report sensor values ( 1 - 255Hz). Default sample rate is 50Hz.
1 Reserved
2 Reserved
3 Reserved
4 Reserved
5 Reserved
6 Reserved
7 Reserved


Broadcast by AnalogX every 1 second.


CAN ID: Base + 0x2 (2)

Offset What Value
0 Current Sample Rate 1 - 255Hz
1 Reserved
2 Reserved
3 Reserved
4 Reserved
5 Major Version Firmware Major Version Number
6 Minor Version Firmware Minor Version Number
7 Patch Version Firmware Patch version number

Sample Broadcast

Sample Broadcast for Analog inputs. The samples are broadcast based on the configured sample rate (default is 50Hz)

Scaling and Data format

  • Scaling: 0-5000mV
  • Data format: Little Endian


  • CAN ID: Base + 0x14 (20)
Offset What Value
0 Channel 1, low byte
1 Channel 1, high byte
2 Channel 2, low byte
3 Channel 2, high byte
4 Channel 3, low byte
5 Channel 3, high byte
6 Channel 4, low byte
7 Channel 4, high byte