2 layers80 × 50 mm
Thermal Camera
Circuit-Digest/MLX90640-Thermal-Camera
An Open Source Thermal Imaging IR camera that you can build yourserlf
66 parts94
2 layers208 × 58 mm
POV LED
Circuit-Digest/POV-Display34DIY POV Display Tutorial using ESP32 Arduino
- Size
- 208 × 58 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 326
- Nets
- 331
- Pads
- 967
- Tracks, vias
- 1,611, 337
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 1 Mar 2024
- Updated
- 16 Jun 2025
Overview
POV LED is an open-source printed circuit board by Circuit-Digest, from the Circuit-Digest/POV-Display repository on GitHub. It is a 2-layer board of 208 × 58 mm with 326 parts on 331 nets, routed with 1,611 tracks and 337 vias.
It is built around the ESP32-WROOM-32D, CH340K and 74HC595D, with the AMS1117-3.3, TP4056 and B2B-PH-SM4-TB(LF)(SN) among its other parts. Its parts include 135 resistors, 132 diodes, 25 capacitors, 25 ICs and 4 connectors. It belongs with the ESP32 boards of this library.
Main components
7
ESP32-WROOM-32D
-- WiFi Modules ROHSEspressif SystemsWiFi Modules
CH340K
ESSOP-10-150mil-1mm-20℃~+70℃ 2Mbps 3.3V、5V USB 2.0 USB to serial ESSOP-10-150mil-1mm USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
74HC595D
SOP-16-40℃~+105℃ 1 100MHz 15ns@6V,50pF 2V~6V 74HC 8 Asynchronous clear function、Output enable Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSJSMSEMIShift Registers
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
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
B2B-PH-SM4-TB(LF)(SN)
SMD,P=2mm-25℃~+85℃ 1 100V 1x2P 2 2A 2P 2mm 6.6mm 7.95mm 7mm Auxiliary Solder Pin Beige Copper alloy PA PH Surface Mount,Vertical Tin UL94V-0 SMD,P=2mm Wire To Board Connector ROHSJSTWire To Board Connector
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
README
README.mdPOV Display
DIY POV Display Tutorial using ESP32 Arduino
POV Display full Yoututbe Video
Click here For other ESP32 tutorials.
Persistence of Vision is a fundamental principle that allows our eyes to perceive continuous motion from separate images, a concept crucial to the illusion of motion in cinema. When I was a kid, I was always fascinated with it. So, in this project, we are going to use this fascinating optical phenomenon to create a cool-looking POV Display. You must have seen a lot of such projects on the web, but most of them are limited to very low resolution and just display some texts and geometries. We plan to create a POV display that is not limited to just texts or simple shapes. Ours will be able to display images and animations with a resolution of 128 pixels. We have settled with this resolution because it's the sweet spot where we can get decent image quality and it would be easier to build. We settled on the ESP32 module as the brain of this display, because it is cheap, easy to get and powerful enough to run the display. The display will have two rotating arms, each outfitted with 64 LEDs, to create a total resolution of 128 pixels. The display will rotate at a constant speed, with the LEDs flashing in meticulously orchestrated patterns, controlled by the ESP32 microcontroller. This synchronization allows the display to generate images or text that appear to hover in mid-air, producing a smooth, continuous visual experience.
[Note: As this projects are very simple we are only providing the code, schemaitic, and a few essential images if you want to get the images or code explanations do check out the Circuit Digest website.
Parts
326| Qty | Value | Footprint | References |
|---|---|---|---|
| 130 | 1K | Resistor_SMD:R_0603_1608Metric | R1, R10, R11, R100, R101, R102, R103, R104, R105, R106, R107, R108, R109, R110, R111, R112 +114 |
| 128 | LED_Small_Filled | LED_SMD:LED_0603_1608Metric | D1, D10, D11, D100, D101, D102, D103, D104, D105, D106, D107, D108, D109, D110, D111, D112 +112 |
| 16 | 10uf | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C5, C6, C7, C8, C11, C12, C13, C22, C23, C24, C25, C26 |
| 16 | 74HC595D | 74hc595:74HC595DQ100118 | IC1, IC2, IC3, IC4, IC5, IC6, IC7, IC8, IC10, IC11, IC12, IC13, IC14, IC15, IC16, IC17 |
| 3 | 10u | Capacitor_SMD:C_0603_1608Metric | C18, C19, C21 |
| 2 | B2B-PH-SM4-TB(LF)(SN) | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J2, J3 |
| 2 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C9, C10 |
| 2 | 1.3K | Resistor_SMD:R_0603_1608Metric | R74, R75 |
| 2 | 10K | Resistor_SMD:R_0603_1608Metric | R66, R68 |
| 2 | AH3572-SA-7 | AH3572_SA_7:SOT23_AH3572-SA-7_DIO | U1, U3 |
| 2 | CHG | LED_SMD:LED_0603_1608Metric | LED1, LED2 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | 0.1UF | Capacitor_SMD:C_0603_1608Metric | C16 |
| 1 | 0.1uf | Capacitor_SMD:C_0603_1608Metric | C15 |
| 1 | 100K | Resistor_SMD:R_0603_1608Metric | U6 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C17 |
| 1 | 2.2uF | Capacitor_SMD:C_0805_2012Metric | C20 |
| 1 | 3.3K | Resistor_SMD:R_0603_1608Metric | Rprog1 |
| 1 | 470R | Resistor_SMD:R_0603_1608Metric | R76 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U8 |
| 1 | AO3041 | Package_TO_SOT_SMD:SOT-23 | U7 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | DDC114TU-7-F | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U5 |
| 1 | ESP32-WROOM-32D | RF_Module:ESP32-WROOM-32 | U2 |
| 1 | POW_LED | LED_SMD:LED_0603_1608Metric | D68 |
| 1 | RST | 3x4x2:Tactile 3x4x2mm TS-A010 | RST1 |
| 1 | SS34 | Diode_SMD:D_SMA | D67 |
| 1 | TP4056 | tp4056:SOIC127P600X175-9N | IC9 |
| 1 | UBOOT | 3x4x2:Tactile 3x4x2mm TS-A010 | BOOT1 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | ch340k | ch340k:ESSOP-10_3.9x4.9mm_P1.00mm | U4 |
Similar boards
- 2 layers146.2 × 99 mm
FPVRover
Circuit-Digest/ESP32-Cam-Surveillance-Car
Watch full video on ESP32 surveillance car
35 parts15 - 2 layers90 × 60 mm
Schem
Abhey-05/Thermal-Camera
Thermal Camera A compact, low-cost thermal imaging solution built for diagnostic, repair, and monitoring applications in electronics, industrial safety, and embedded systems.
60 parts - 4 layers81 × 61 mm
- 4 layers100 × 80 mm
- 2 layers96 × 63 mm
- 2 layers100 × 100 mm
ESP drone
hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!
130 parts915 - 2 layers40 × 75 mm
Questions
How big is the POV LED PCB?
It measures 208 × 58 mm and has 2 copper layers, 1.6 mm thick.
What parts does the POV LED use?
326 parts, built around the ESP32-WROOM-32D, CH340K, 74HC595D and AMS1117-3.3. 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 POV LED KiCad files?
From the Circuit-Digest/POV-Display repository on GitHub, at the commit this page was made from: the board is PCB/POV LED.kicad_pcb and its schematic PCB/POV LED.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the POV LED design in my own project?
Its repository states no licence, so its author keeps all rights: ask Circuit-Digest before reusing the design.