# 2. Adapter hardware
# 2.1 Features
- I2C port
- UART port
- 5v or 3.3v solderable jumper to power up payload
- Input voltage sensor
- 5v rail voltage sensor
- CAN connectors: 2 UCANPHY Micro (JST-GH 4) (opens new window), 2 6-pin Molex (opens new window)
- Weight: 6.6 g (with cable 8 g)
- LxWxH: 22 x 33 x 11.7 mm
# 2.2 Wire
Schematic can be provided via e-mail request or issue on github.
|1||UCANPHY Micro (JST-GH 4)||Devices that deliver power to the bus are required to provide 4.9–5.5 V on the bus power line, 5.0 V nominal. Devices that are powered from the bus should expect 4.0–5.5 V on the bus power line. The current shall not exceed 1 A per connector.|
|2||6-pin Molex (502585-0670 (opens new window), 502578-0600 (opens new window))||Contacts support up to 100 V, 2 A per contact. But the board may work only with 2S-6S.|
|3||SWD||STM32 firmware updating using programmer-sniffer.|
|4||UART, I2C||Connectors should be used to deliver signal and power (below 1 amp) to payload such as RANGFINDER|
Here (opens new window) you can find manufacturer part number of connectors it self and its mates.
Pin configuration and functions
|Pin||2 CAN-HV||Pin||2 CAN-LV||SWD||I2C||UART|
|3||CAN High||3||CAN Low||SWDIO||SDA||TXO|
# 2.3 Specifications
Mechanical drowing is shown on the picture below.
|Width, mm||Length, mm||Height, mm|
Total weight of device is 6.6 g.
You can download 3D model on GrabCAD (opens new window)
Information about case presented here.
Absolute Maximum Ratings
|V (CAN2, CAN3)||4.5||5.5||V|
*Noted Voltage should be delivered only with current limitation under 2.5 Amp.
Recommended operating conditions
|V (CAN1, CAN2)||5||V|
|Human-body model (HBM)||2000||V|
|Charged-device model (CDM)||500||V|
# 2.4 Description
Functional Block Diagram
Connection example diagram
Example of connection with kirpi node is shown below:
# 2.5 Power Supply Recommendations
Device is designed to operate from an input voltage supply range between 4.5 V and 5.5 V over CAN2 or CAN3 connector, or 5.5 - 30 V from CAN1. This input supply must be able to withstand the maximum input current and maintain a stable voltage. The resistance of the input supply rail should be low enough that an input current transient does not cause a high enough drop that can cause a false UVLO fault triggering and system reset. The amount of bulk capacitance is not critical, but a 47-μF or 100-μF electrolytic capacitor is a typical choice.
# 2.6 Revision history
|v3.1.0||Initial version with STM32G0 MCU|