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  • Compact & powerful, measured only 58.42x40.64mm (2300x1600mil) packing all the onboard features.
  • 2x18P pinout layout, standard pitch 2.54mm (100mil) breadboard friendly, with one side dedicated for peripheral (power, programming, communication) and the other side for GPIO, simplifying wire/trace management.
  • Castellated holes & pin header, choose inter-board connection method according to your application requirement.
  • ESP32-WROOM-32UE, comes with latest ECO V3 Dual Core 32-bit LX6 microprocessor with clock up to 240MHz, ULP co-processor, 520kB SRAM, 4MB flash.
  • 802.11b/g/n WiFi Connectivity, support mode STA/AP/STA+AP mode with external antenna using U.FL/IPEX connector allowing the board to be installed inside the enclosure without worrying transceiver signal quality.
  • Bluetooth 4.2 Connectivity, support classic bluetooth and Low Energy (LE) protocol.
  • CP2104 UART to USB Bridge, full-speed programmer & data port with auto-reset trigger using DTR and RTS line.
  • DS3231M RTC, extremely accurate ±5ppm RTC with alarm trigger capability and replaceable CR1220 battery. Connected via I2C at address 0x68.
  • AHT20 Environment Sensor, temperature and humidity sensor connected via I2C at address 0x38.
  • XC6220 LDO, providing +3.3V power up to 1A with Green Operation mode which automatically switched to power save mode on light load.
  • Built-in LED/RGB, single color active-low LED connected to pin IO2, and SK6812 addressable RGB LED connected to pin IO4. SK6812 data out is exposed so you can chain it up with the rest of the LED circuit.
  • MicroSD socket, connected via SPI with slave select (SS) at pin IO5.
  • USB Type-C Connector, no more hassle when connecting USB cable, plug it in anyway you want.
  • 26 pin GPIO @3V3 level, 3xUART, 2xSPI, 2xI2C, 2xI2S, 12bit ADC, 8bit DAC, hall-effect sensing, capacitive sensing, JTAG debug, etc.






ID Name Designator Footprint Quantity BOM_Manufacturer Part BOM_Manufacturer BOM_Supplier BOM_Supplier Part
1 CR1220 BAT1 BATTERY-2-AA 1 CR1220-2 Q&J LCSC C70381
2 RST BTN1 SW-SMD_L3.9-W3.0-P4.45 1 TS-1088R-02026 XUNPU LCSC C455280
3 BOOT BTN2 SW-SMD_L3.9-W3.0-P4.45 1 TS-1088R-02026 XUNPU LCSC C455280
4 4.7u C2,C6 C0402 2 CL05A475KP5NRNC Samsung Electro-Mechanics LCSC C368809
5 220u, 6.3V C7 CASE-B_3528 1 F930J227MBA AVX LCSC C145083
6 10u C3,C4,C5,C9 C0402 4 CL05A106MP5NUNC Samsung Electro-Mechanics LCSC C315248
7 100n C1,C8,C10,C11,C12,C13,C14 C0402 7 CC0402KRX7R7BB104 YAGEO LCSC C60474
8 HYC80-TF08-375 CARD1 HYC80-TF08-XXX 1 HYC80-TF08-XXX Shenzhen Huayu Chuang Precision Electronics Co., Ltd. DZYJZJ HYC003993
10 B5819WS D1 SOD-323_L1.8-W1.3-LS2.5-RD 1 B5819WS MDD LCSC C64886
11 USBLC6-2SC6 D2 SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR 1 USBLC6-2SC6 STMicroelectronics LCSC C7519
12 Blue LED1,LED2 LED-0402 2 16-213/BHC-AN1P2/3T EVERLIGHT LCSC C131223
13 White LED3,LED4 LED-0402 2 16-213/T3D-AP1Q2QY/3T EVERLIGHT LCSC C74340
14 EC20-SK6812 LED5 SK6812-2020 1 EC20-6812 Normand Normand EC20-6812
15 UMH3N Q1 SC-70-6_L2.2-W1.3-P0.65-LS2.1-BL 1 UMH3N CJ LCSC C62892
16 1M R1 R0402 1 RC0402FR-071ML YAGEO LCSC C138033
17 5.1k R2,R3 R0402 2 RC0402FR-075K1L YAGEO LCSC C105872
18 1k R4,R5,R8,R17 R0402 4 RC0402FR-071KL YAGEO LCSC C106235
19 100k R7 R0402 1 RC0402FR-07100KL YAGEO LCSC C60491
20 10k R6,R9,R10,R11,R12,R13,R14,R15,R16 R0402 9 RC0402FR-0710KL YAGEO LCSC C60490
21 CP2104-F03-GMR U1 QFN-24_L4.0-W4.0-P0.50-BL-EP2.6 1 CP2104-F03-GMR SILICON LABS LCSC C47015
22 XC6220B331MR-G U2 SOT-25-5_L3.0-W1.8-P0.95-LS3.0-BR 1 XC6220B331MR-G TOREX LCSC C86534
23 ESP32-WROOM-32U/UE U3 WIFIM-32UE-SMD_38P-L19.2-W18.0-P1.27 1 ESP32-WROOM-32UE(4MB) Espressif Systems LCSC C701344
24 DS3231MZ+ U4 SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL 1 DS3231MZ+ MAXIM LCSC C107410
25 AHT20 U5 DFN-6_L3.0-W3.0-P1.00-BL 1 AHT20 Aosong (Guangzhou) Elec LCSC C503357




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