2 layers50 × 50 mm
Rfid uhf wifi reader
OpenLaundry/wifi-rfid-uhf-reader
Portable long range RFID uhf reader with WIFI based on esp32
23 parts8
2 layers100 × 100 mm
Desktop light
rmingon/desktop-lightDesktop light ws2812b with warm setting and text writing
- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 95
- Nets
- 122
- Pads
- 425
- Tracks, vias
- 602, 109
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 13 Aug 2024
- Updated
- 16 Jan 2025
Overview
Desktop light is an open-source printed circuit board by rmingon, from the rmingon/desktop-light repository on GitHub. It is a 2-layer board of 100 × 100 mm with 95 parts on 122 nets, routed with 602 tracks and 109 vias.
It is built around the CH340C, ESP32-WROOM-32 and AMS1117-3.3, with the PCF8523T, WS2812B and BSS138 among its other parts. Its parts include 62 diodes, 9 resistors, 6 capacitors, 5 connectors and 4 ICs. It belongs with the ESP32 boards of this library.
Main components
6
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
PCF8523T
SOIC8Real-Time Clock (RTC) and calendarNXP SemiconductorsUncategorised
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
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
README
README.mdDesktop Light
desktop light with micro usb programming usb and extendable light
features
- ESP32
- WS2812b
- RTC
- 3 programmable buttons
- CH310 usb programming
- Jack connector 5V
Real
3d
pcb
schematic
Parts
95| Qty | Value | Footprint | References |
|---|---|---|---|
| 60 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +44 |
| 9 | R_Small | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R6, R7, R8, R9 |
| 5 | C | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C5 |
| 5 | SW_Push | Button_Switch_SMD:SW_SPST_FSMSM | BOOT1, BTN1, BTN2, BTN3, EN1 |
| 3 | Conn_01x06 | Connector_JST:JST_SH_BM06B-SRSS-TB_1x06-1MP_P1.00mm_Vertical | J1, J2, J5 |
| 2 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D61, D62 |
| 1 | ABS2532768KHZ6T | Crystal:Crystal_SMD_Abracon_ABS25-4Pin_8.0x3.8mm | Y1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | Barrel_Jack | Connector_BarrelJack:BarrelJack_Wuerth_6941xx301002 | J4 |
| 1 | Battery_Cell | Battery:BatteryHolder_LINX_BAT-HLD-012-SMT | BT1 |
| 1 | CH340C | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U3 |
| 1 | C_Small | Capacitor_SMD:C_0603_1608Metric | C6 |
| 1 | ESP32-WROOM-32 | RF_Module:ESP32-WROOM-32 | U1 |
| 1 | PCF8523T | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Molex-105017-0001 | J3 |
Questions
How big is the Desktop light PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Desktop light use?
95 parts, built around the CH340C, ESP32-WROOM-32, AMS1117-3.3 and PCF8523T. 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 Desktop light KiCad files?
From the rmingon/desktop-light repository on GitHub, at the commit this page was made from: the board is hardware/desktop-light.kicad_pcb and its schematic hardware/desktop-light.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Desktop light design in my own project?
Its repository states no licence, so its author keeps all rights: ask rmingon before reusing the design.
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