Zilch RFID reader setup
Written by Matthew Clark-Massera
Updated at April 25th, 2023
Table of Contents
Custom TTL RFID reader integration.
Wiring
| RFID Reader Wire | Connect to |
| Red - VCC/12V | 12V power. It has been observed that the Purple Sys Rail out (~4.5V) on the Dart3 is able to power the reader. To use this connect to Purple on Dart3, Pin3 |
| Black - GND | Dart3 GND |
| Green - TX | Dart3 Pin 4 - Green - RX |
| White - RX | Dart3 Pin 10 - Brown - TX |
See DART3 12-wire Harness Definition
Parameters
Tell the Dart3 to expect the Zilch reader.
The RFID reader will loudly beep when it is first powered on. If powering via the Purple Sys Rail out wire - set the below parameter.
This will prevent this rail being powered down when the device sleeps - and avoiding beep when the Dart3 wakes up.
Codes
DM Driver ID Data Type 1 (RFID) is used.
This is a 5 byte field. Zilch cards use 4 bytes, so the top byte is padded.
E.g.
Say you have card 0x11223344 and you scan it.
Dart3 will read this and report as 0x0011223344
Adding a Driver to the List Example
See Managing Driver Lists from a 3rd Party Server. Drivers can be pushed down to the device via the OEM Web API.
- Card 0x0011223344
- Base64 encoded ABEiM0Q=
- See OEM Web API doc for full details - drivers are sent to device via this structure
- Once sent we can check we passed drivers correctly via Get Drivers
- We see the driver in the list
