# ESP32-H2 Relay Board ## Description This is a WiFi relay board based on ESP32-H2 WiFi module. It have AC-DC power supply with output 12V and relay for controlling voltage #esp32 #project #Relay #wifi #esp32-h2 #iot #template ## Project Details - **Owner:** fonscpro - **Created:** 3/24/2024 - **Last Updated:** 3/24/2024 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ ## Key Components ### D1 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht~gr.md) - Saturation Current: 93.2e-12A - Forward Voltage: 1.70 - Emission Coefficient: 3.73 - Breakdown Voltage: 0V - Series Resistance: 0.42Ω **Pins:** - A [pin 2] - K [pin 1] ### K1 — [SRD-12VDC-SL-C](https://www.flux.ai/jecstronic/srd-12vdc-sl-c~ofu.md) - Part Type: Relay - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://datasheet.lcsc.com/lcsc/2304140030_Ningbo-Songle-Relay-SRD-12VDC-SL-C_C30431.pdf - Manufacturer Name: Ningbo Songle Relay - Manufacturer Part Number: SRD-12VDC-SL-C **Pins:** - ~ [pin NC] - ~ [pin NO] - ~ [pin COIL1] - ~ [pin COM] - ~ [pin COIL2] ### Q1 — [2N3904](https://www.flux.ai/adrian95/2n3904~a6d.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Transistor - Manufacturer Part Number: 2N3904 - Manufacturer Name: NTE Electronics, Inc - Datasheet URL: https://www.nteinc.com/specs/original/2N3904.pdf **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### U3 — [ESP32-DEVKIT-V1](https://www.flux.ai/vasyl/esp32-devkit-v1~zya.md) - Part Type: Module - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf - Manufacturer Name: Espressif Systems - Manufacturer Part Number: ESP32-DEVKIT-V1 **Pins:** - 3V3 [pin 1] - D12 [pin 27] - D13 [pin 28] - D14 [pin 26] - D15 [pin 3] - D18 [pin 9] - D19 [pin 10] - D2 [pin 4] - D21 [pin 11] - D22 [pin 14] - D23 [pin 15] - D25 [pin 23] - D26 [pin 24] - D27 [pin 25] - D32 [pin 21] - D33 [pin 22] - D34 [pin 19] - D35 [pin 20] - D4 [pin 5] - D5 [pin 8] - EN [pin 16] - GND [pin 2] - GND__1 [pin 29] - RX0 [pin 12] - RX2 [pin 6] - TX0 [pin 13] - TX2 [pin 7] - VIN [pin 30] - VN [pin 18] - VP [pin 17] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/fonscpro/esp32-h2-relay-board~5t](https://www.flux.ai/fonscpro/esp32-h2-relay-board~5t).* --- *Generated from [https://www.flux.ai/fonscpro/esp32-h2-relay-board~5t](https://www.flux.ai/fonscpro/esp32-h2-relay-board~5t)*