ESP32-H2-DevKit-LiPo Development Board Schematic
Schematic for Olimex ESP32-H2-DevKit-LiPo featuring ESP32-H2-MINI-1-N4 SoC with Bluetooth LE/IEEE 802.15.4, LiPo battery charging, and CH340X USB-to-UART.
Overview
This document provides the hardware schematic for the Olimex ESP32-H2-DevKit-LiPo development board. The design is based on the Espressif Systems ESP32-H2-MINI-1-N4 module, which incorporates a 32-bit RISC-V core with Bluetooth 5 (LE) and IEEE 802.15.4 (Zigbee/Thread) support. Key integrated circuits include a Shanghai Belling BL4054B-42TPRN LiPo battery charger, a WCH CH340X USB-to-UART bridge, and a Willsemi WL9005P3-33 LDO regulator providing 3.3V at up to 500mA. The board features dual USB-C connectors, QWIIC and pUEXT peripheral headers, battery level sensing circuitry, and an auto-programming circuit using BC817-40 transistors.
Use Cases
- Low-power IoT sensor node development
- Zigbee and Thread mesh networking prototypes
- Battery-powered Bluetooth LE applications
- Matter-compliant smart home device development
- Open-source hardware prototyping with ESP32-H2
Topics
Referenced Parts
ESP32-H2-MINI-1-N4
Espressif Systems
U2 ESP32-H2-MINI-1-N4
BL4054B-42TPRN
Shanghai Belling
U1 BL4054B-42TPRN(SOT23-5)
CH340X
WCH
U3 CH340X(MSOP-10)
WL9005P3-33
Willsemi
VR1 WL9005P3-33(SOT89-3)
WPM2015-3/TR
Willsemi
FET1 WPM2015-3/TR
1N5819S4
Comchip Technology
D7 1N5819S4/SOD123
A40-00119-A52-12
HRO
USB-C-16P-F(A40-00119-A52-12)
YTS-A016-X
Yite
BUT1 YTS-A016-X
SH1.0-10P-180D
JST
pUEXT1 SH1.0-10P-180D
SH1.0-4P-180D
JST
QWST1 SH1.0-4P-180D
| BC817-40 | Onsemi | T2 BC817-40(SOT23) |
| ESP32-H2-MINI-1-N4 | Espressif Systems | U2 ESP32-H2-MINI-1-N4 |
| BL4054B-42TPRN | Shanghai Belling | U1 BL4054B-42TPRN(SOT23-5) |
| CH340X | WCH | U3 CH340X(MSOP-10) |
| WL9005P3-33 | Willsemi | VR1 WL9005P3-33(SOT89-3) |
| WPM2015-3/TR | Willsemi | FET1 WPM2015-3/TR |
| 1N5819S4 | Comchip Technology | D7 1N5819S4/SOD123 |
| A40-00119-A52-12 | HRO | USB-C-16P-F(A40-00119-A52-12) |
| YTS-A016-X | Yite | BUT1 YTS-A016-X |
| SH1.0-10P-180D | JST | pUEXT1 SH1.0-10P-180D |
| SH1.0-4P-180D | JST | QWST1 SH1.0-4P-180D |