134khz Rfid Reader
About the 134khz Rfid Reader PCB
134khz Rfid Reader is an open source PCB design by harsha-2-006, published on GitHub under the MIT license. It is a 2-layer board measuring 92.7 × 65.1 mm, with 14 components from 13 distinct parts.
Other key parts include the EM4095, 560uH and AMS1117-5.0. By type, the board carries 7 capacitors, 3 ICs, 2 resistors, 1 connector and 1 diode.
From the project
Low-frequency 134.2 kHz RFID reader using EM4095 and ESP32
A low-frequency RFID reader designed and built to explore the fundamentals of LF RFID communication systems at 134.2 kHz.
This project uses the EM4095 RFID analog front-end with an ESP32 for signal processing and data handling. A custom PCB with an integrated coil antenna was designed specifically for this implementation.
The system operates at 134.2 kHz and detects compatible LF RFID tags through magnetic field coupling. The EM4095 handles signal amplification and demodulation, while the ESP32 processes the received data.
Main components on the 134khz Rfid Reader
134khz Rfid Reader bill of materials (BOM)
14 components, 13 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | EM4095 | SOIC-16_3.9x9.9mm_P1.27mm | IC1 |
| 1 | 560uH | RFID_COIL | U1 |
| 1 | AMS1117-5.0 | SOT-223-3_TabPin2 | U2 |
| 1 | CONN_01X06 Conn_01x06 | PinHeader_1x06_P2.54mm_Vertical | J1 |
| 1 | LED | LED_1206_3216Metric | D1 |
| 1 | 100 nF | C_0805_2012Metric | C1 |
| 1 | 1 nF | C_0805_2012Metric | C2 |
| 1 | 470 nF | C_0805_2012Metric | C3 |
| 1 | 100 pF | C_0805_2012Metric | C4 |
| 2 | 10 nF | C_0805_2012Metric | C5, C7 |
| 1 | 2.5 nF | C_0805_2012Metric | C6 |
| 1 | 33 kΩ | R_0805_2012Metric | R1 |
| 1 | 1kΩ | R_1206_3216Metric | R2 |
134khz Rfid Reader design files
The KiCad project lives in the harsha-2-006/134khz_Rfid_Reader repository on GitHub; these links point at the commit this page was built from.
134khz Rfid Reader: common questions
How big is the 134khz Rfid Reader PCB?
The 134khz Rfid Reader measures 92.7 × 65.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 134khz Rfid Reader?
14 components, from 13 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the 134khz Rfid Reader design files?
From the harsha-2-006/134khz_Rfid_Reader repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the 134khz Rfid Reader design in my own project?
Yes, under the terms of its MIT license, which harsha-2-006 chose for the repository.