
U107 · M5Stack

Unit RFID-UHF is an ultra-high frequency (UHF) embedded wireless RF read/write module. It adopts the JRD-4035 module solution with a built-in ceramic antenna, completely eliminating the technical uncertainty caused by the need for an additional antenna in ordinary UHF modules. The optimized RF design achieves low power consumption and high performance, reaching an effective range of over 1.5M with just 100mW transmission power. Using a serial communication interface along with a built-in… (M5Stack U107)
| Part number | U107 |
|---|---|
| Manufacturer | M5Stack |
| Category | Communication & Wireless › NFC & RFID Readers |
| Pins | 4 |
| Power | 100 mW |
UHF RFID Unit (JRD-4035) pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | SIG1 | bidirectional | PORT.B: GPIO/analog; PORT.C: UART - see the unit's pin map |
| 2 | SIG2 | bidirectional | PORT.B: GPIO/analog; PORT.C: UART - see the unit's pin map |
| 3 | 5V | power | |
| 4 | GND | ground |
Schematic symbol and footprint
Schematic symbol
Footprint: Grove HY2.0 4-pin through-hole, 2.0 mm pitch — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
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