2 layers100 × 100 mm
2 layers50 × 50 mm
Rfid uhf wifi reader
OpenLaundry/wifi-rfid-uhf-reader8Portable long range RFID uhf reader with WIFI based on esp32
- Size
- 50 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 51
- Pads
- 121
- Tracks, vias
- 205, 46
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 28 Jun 2023
- Updated
- 28 Jan 2025
Overview
Rfid uhf wifi reader is an open-source printed circuit board by OpenLaundry, from the OpenLaundry/wifi-rfid-uhf-reader repository on GitHub. It is a 2-layer board of 50 × 50 mm with 23 parts on 51 nets, routed with 205 tracks and 46 vias.
It is built around the CH340C, ESP32-WROOM-32 and AMS1117-3.3, with the BSS138 and WS2812B among its other parts. Its parts include 5 capacitors, 5 resistors, 3 ICs, 3 diodes and 3 connectors. It belongs with the radio and wireless boards and the ESP32 boards of this library.
Main components
5
CH340C
SOP-16-20℃~+70℃ 2Mbps 3.3V、5V 50uA 7mA Transceiver USB 2.0 SOP-16 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
ESP32-WROOM-32
SMD,18x25.5mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20dBm Bluetooth4.2 ESP32-DOWDQ6 UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
README
README.mdRFID UHF READER
CURRENTLY WAITING PCB
UHF rfid reader with bluetooth/WIFI/HID
- Add battery
- ESP32
- VM-5GA
NEW VERSION ON KICAD
USING
SCHEMATIC VIEW
PCB VIEW
3D VIEW
OLD VERSION ON FUSION360
SCHEMATIC VIEW
PCB VIEW
3D VIEW
Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | C | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C6, C7 |
| 5 | R_Small | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5 |
| 2 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q3, Q4 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D1, D2 |
| 2 | SW_Push | Button_Switch_SMD:SW_SPST_FSMSM | SW1, SW2 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | CH340C | CH340C:SO016 | U4 |
| 1 | Conn_01x02 | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | J3 |
| 1 | Conn_01x05 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J2 |
| 1 | ESP32-WROOM-32 | RF_Module:ESP32-WROOM-32 | U1 |
| 1 | USB_OTG | Connector_USB:USB_Micro-B_Amphenol_10118194_Horizontal | J1 |
| 1 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D3 |
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Questions
How big is the Rfid uhf wifi reader PCB?
It measures 50 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Rfid uhf wifi reader use?
23 parts, built around the CH340C, ESP32-WROOM-32, AMS1117-3.3 and BSS138. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Rfid uhf wifi reader KiCad files?
From the OpenLaundry/wifi-rfid-uhf-reader repository on GitHub, at the commit this page was made from: the board is v2/pcb/rfid-uhf-wifi-reader/rfid-uhf-wifi-reader.kicad_pcb and its schematic v2/pcb/rfid-uhf-wifi-reader/rfid-uhf-wifi-reader.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Rfid uhf wifi reader design in my own project?
Its repository states no licence, so its author keeps all rights: ask OpenLaundry before reusing the design.