# 2. Adapter hardware

This page is about hardware specific details. For general information, refer to the 1. General page., for software related details please refer Cyphal interface or DroneCAN interface.

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drawing drawing drawing
drawing drawing

# 2.1 Features

# 2.2 Wire

Schematic can be provided via e-mail request or issue on github.

Connectors

Connector Description
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
1 Vin 1 5V in GND Vcc Vcc
2 Vin 2 CAN High SWCLK SCL RXI
3 CAN High 3 CAN Low SWDIO SDA TXO
4 CAN Low 4 GND 3.3V GND GND
5 GND
6 GND

# 2.3 Specifications

Mechanical

Mechanical drowing is shown on the picture below.

drw

Width, mm Length, mm Height, mm
Outline 22.1 33.1 11.7
PCB 22.1 33.1 1.6

Total weight of device is 6.6 g.

You can download 3D model on GrabCAD (opens new window)

Housing

Information about case presented here.

Absolute Maximum Ratings

Parameter MIN MAX UNIT
Vin (CAN1) 5.5 55* V
V (CAN2, CAN3) 4.5 5.5 V
I max A
Operating temperature

*Noted Voltage should be delivered only with current limitation under 2.5 Amp.

Recommended operating conditions

Parameter Value UNIT
Vin (CAN3) 30 V
V (CAN1, CAN2) 5 V
I max A

ESD ratings

Description Value UNIT
Human-body model (HBM) 2000 V
Charged-device model (CDM) 500 V

# 2.4 Description

Functional Block Diagram

Connection example diagram

An example of Adapter node connection with LightWare LW20/C (opens new window) (doc (opens new window)) and Garmin-Lite v3 (opens new window) (doc (opens new window)) 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

version Description
v3.1.0 Initial version with STM32G0 MCU