4 layers102 × 34 mm
Netscore
arcticlula/Netscore
Device that keeps track of a volleyball's game score (points and sets). Ideally it should be mounted on the net, since it has a display on the front and back and buttons on the sides.
150 partsMIT
2 layers73 × 52 mm
Badge Scanner
Qeteshpony/Badge-ScannerRaspberry Pi Pico W powered device to scan NFC-Badges and show a status on display
- Size
- 73 × 52 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 72
- Nets
- 55
- Pads
- 300
- Tracks, vias
- 312, 33
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 16 Jun 2024
- Updated
- 7 Jan 2025
Overview
Badge Scanner is an open-source printed circuit board by Qeteshpony, from the Qeteshpony/Badge-Scanner repository on GitHub, published under the BSD-2-Clause licence. It is a 2-layer board of 73 × 52 mm with 72 parts on 55 nets, routed with 312 tracks and 33 vias.
It is built around the CJ431, DS3231MZ/V+ and TP4056, with the AO3400A, AO3401A and 1N5819WS among its other parts. Its parts include 28 resistors, 10 capacitors, 7 transistors, 4 ICs and 4 diodes. It belongs with the lEDs and displays and radio and wireless boards and the RP2040 boards of this library.
Main components
6
CJ431
SOT-89-3-25℃~+85℃@(Ta) 100mA 1mA 2.5V~36V 50ppm/℃ Adjustable Parallel ±0.5% SOT-23 Voltage Reference ROHSJiangsu Changjing Electronics Technology (CJ)Voltage Reference
DS3231MZ/V+
SOIC-8-40℃~+85℃ 2.3V~5.5V Built-in I2C Temperature compensation、Backup power management and battery charging、Alarm function、Locking and tamper-proof、Periodic interrupt output SOIC-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time Clocks
TP4056
ESOP-8-40℃~+85℃ 1 1A 35uA 4.2V 4V~6.5V Charging IC Lithium Battery Support Support 恒流充电、恒压充电、涓流充电、自动再充电、充电终止、可编程充电电流、软启动、欠压锁定 ESOP-8 Battery Management ROHSUMWBattery Management
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsAO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
1N5819WS
SOD-3231 Independent 1A 25A 40V 500uA@40V 600mV@1A SOD-323 Schottky Diodes ROHSGuangdong HottechSchottky Diodes
README
README.mdNFC-Badge Scanner
Raspberry Pi Pico W powered device to scan NFC-Badges and show a status on display
It is meant to be used with the widely available RFID-RC522 reader and the DFROBOT LCD1602 RGB Backlight Module but any other I2C Display should work as well.
The device features an I2C RTC with backup battery connector and an SD-Card reader connected via SPI for data storage.
There is also a buzzer that can be used for audible signals.
Power can be provided through the USB port of the Pico or through a LiPo battery connected to the board. The LiPo battery can also be charged via the USB port and the device will switch seamlessly between battery and usb power.
The button can be used to send a shutdown signal to the microcontroller which then can power the whole device off by pulling a GPIO low. Pressing the button while the device is off or pluggin in USB will power it up again.
Parts
72| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 3k3 | Resistor_SMD:R_0402_1005Metric | R7, R8, R9, R10, R11, R12, R13 |
| 6 | 100k | Resistor_SMD:R_0402_1005Metric | R6, R18, R20, R21, R23, R24 |
| 5 | 10k | Resistor_SMD:R_0402_1005Metric | R14, R15, R25, R26, R28 |
| 4 | 100n | Capacitor_SMD:C_0402_1005Metric | C1, C3, C5, C7 |
| 4 | 10u | Capacitor_SMD:C_0402_1005Metric | C2, C4, C6, C8 |
| 4 | 2k | Resistor_SMD:R_0402_1005Metric | R3, R4, R19, R27 |
| 4 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q1, Q5, Q6, Q8 |
| 3 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q2, Q3, Q7 |
| 2 | 1M | Resistor_SMD:R_0402_1005Metric | R16, R17 |
| 2 | 1N5819WS | Diode_SMD:D_SOD-323 | D3, D4 |
| 2 | 22u | Capacitor_SMD:C_0603_1608Metric | C9, C10 |
| 2 | 680R | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 1 | 100R | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | 18650 | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | BT2 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R22 |
| 1 | Activity | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | Battery_Cell | Connector_Molex:Molex_PicoBlade_53047-0210_1x02_P1.25mm_Vertical | BT1 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | CJ431 | Package_TO_SOT_SMD:SOT-23 | U4 |
| 1 | DS3231MZ | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | Fan | Connector:FanPinHeader_1x04_P2.54mm_Vertical | M1 |
| 1 | I2C | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J3 |
| 1 | LOGO | My_Footprints:CutieMark5mmInverted | G*** |
| 1 | LOGO | My_Footprints:qr_qete.sh-el_08 | G*** |
| 1 | Micro_SD_Card_Det1 | My_Footprints:TF_PUSH_Micro-SD-Connector | J4 |
| 1 | NFC-Module | Connector_JST:JST_XH_B8B-XH-A_1x08_P2.50mm_Vertical | J1 |
| 1 | Pico W | Badge-Scanner:RPi_PicoW_SMD_TH_NoSilkscreenText | U1 |
| 1 | Power | Button_Switch_THT:SW_Tactile_SPST_Angled_PTS645Vx58-2LFS | SW1 |
| 1 | Power | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | Reset | Button_Switch_THT:SW_Tactile_SPST_Angled_PTS645Vx31-2LFS | SW2 |
| 1 | Serial | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | TP4056 | Package_SO:HSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.1mm | U3 |
The 65 most common of 72 parts.
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Questions
How big is the Badge Scanner PCB?
It measures 73 × 52 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Badge Scanner use?
72 parts, built around the CJ431, DS3231MZ/V+, TP4056 and AO3400A. 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 Badge Scanner KiCad files?
From the Qeteshpony/Badge-Scanner repository on GitHub, at the commit this page was made from: the board is pcb/Badge-Scanner.kicad_pcb and its schematic pcb/Badge-Scanner.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Badge Scanner design in my own project?
Its repository publishes it under the BSD-2-Clause licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).