ICStation USBRelay
Revision as of 13:46, 7 August 2021 by Knarfs (talk | contribs) (→Protocol: Add protocol description)
Status | in progress |
---|---|
Source code | icstation-usbrelay |
Channels | 2, 4 or 8 |
Ratings | 10A @ 250VAC/30VDC, 12A @ 125VAC/28VDC |
Connectivity | USB/Serial |
The ICStation USBRelay is a USB relay card with up to 8 relays. Models with 2 (ICSE013A), 4 (ICSE012A) and 8 (ICSE014A) relays exist.
See Info for USB details.
Photos
Hardware
- STM 8S003F3P6 microcontroller: datasheet
- Prolific PL-2303HX USB to UART Bridge: datasheet
- ULN2803AG relay driver: datasheet
Protocol
The relay board have a very simple and limited protocol. Once entered the command mode, every following byte will be interpreted as a mask for switching the relays.
Byte | Command | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
0x50 | Query the device type.
Response:
| |||||||||
0x51 | Start command mode.
Every following byte will be interpreted as a mask for switching the relays. |
Example use
Detect the device and display its properties.
$ sigrok-cli -d icstation-usbrelay:conn=/dev/ttyUSB0 --show Driver functions: Multiplexer Scan options: conn serialcomm icstation-usbrelay - ICStation ICSE012A Channel groups: R1: channel R2: channel R3: channel R4: channel Supported configuration options across all channel groups: enabled: on, off
Manipulate the state of relays.
$ sigrok-cli -d icstation-usbrelay:conn=/dev/ttyUSB0 --config channel_group=R1:enabled=off --config channel_group=R2:enabled=on --set