2 layers55 × 55 mm
Prismo
nu31hackerspace/prismo
Open-source $10 NFC/RFID door access controller for hackerspaces and makerspaces. ESP32-C3 + PN532, MQTT, Home Assistant, self-hosted
29 parts39MIT
ESP32-C3
80 boardsKiCad boards from 60 GitHub repositories tagged “esp32-c3”, the most starred first; open any of them in PCBKit.
- 4 layers70 × 70 mm
CloudSmoker ver2f
cwgstreet/cloudSmoker
ESP32 wifi enabled quad temperature probe device to monitor bbq meat / pit temperatures with wireless cloud data logging for remote monitoring and push alert notifications
115 parts24 - 2 layers61.3 × 89.6 mm
QuakeGuard PCB
GiZano/QuakeGuard
Distributed Earthquake Early Warning (EEW) system built on low-cost ESP32-C3 IoT sensors with Zero-Trust security, multi-node epicenter triangulation, and on-premise AI emergency reports.
17 parts24AGPL-3.0 - 2 layers25.4 × 26 mm
- 2 layers91.7 × 70 mm
Current logger
hnz1102/current-logger
This tool provides a logging function that gets data on voltage, current and power consumption. Voltage input range is from 0 to 85V, Maximum current input is 15A.
64 parts18 - 2 layers70.5 × 64.8 mm
Smart Power Button
ChocolateLoverRaj/rust-esp32c3-examples
Examples with wiring diagrams for using some sensors with ESP32-C3, programmed with Rust
31 parts15MIT - 2 layers25.1 × 25.2 mm
Mini Environmental Sensor
MbFredys/PCB-Mini-Environmental-Sensor
Compact ESP32-C3 environmental-sensor PCB design using BME280 and SGP40 for temperature, humidity, pressure, and VOC-based air-quality sensing.
34 parts14 - 4 layers12.7 × 22.3 mm
- 2 layers74 × 34 mm
VhARIO ESPC3
har-in-air/VhARIO-ESPC3
Kicad schematic and layout for ESP32-C3 + MPU9250 + MS5611 audio vario
57 parts13GPL-3.0 - 2 layers56.6 × 25 mm
- 2 layers50 × 48 mm
HexGateway
gblach/HexGateway
An internet gateway for Bluetooth LE, OpenThread and/or Zigbee devices.
89 parts10 - 2 layers30 × 43 mm
Currentmeter
hnz1102/mini-current-meter
Mini Current Meter using INA228A ultra-precise digital power monitor
40 parts10 - 2 layers145.4 × 100.5 mm
- 4 layers35.4 × 21.6 mm
ESP32-C3-V4
Ans1S/esp32-c3-iot-sensor-board
Open-source ESP32-C3 platform for ultra-low-power environmental sensor networks powered by recycled LiPo cells. Includes KiCad PCB, PlatformIO firmware (ESP-NOW + ThingSpeak), BME280/BME680 support, deep-sleep…
57 parts6MIT - 2 layers54.1 × 21.9 mm
- 2 layers54.8 × 28.1 mm
Gulu ESP32-C3 ePaper
Plaenkler/Gulu_ESP32-C3_ePaper
ESP32-C3 based ePaper Devboard
34 parts6BSD-3-Clause - 2 layers50 × 70 mm
Temp logger
hnz1102/temp-logger
Logging Thermocouple Temperature and Send Data to InfluxDB system.
52 parts5 - 2 layers38.1 × 49.5 mm
Esp32c3-iot client board
74th/esp32c3-iot-server-board
Board for converting Grove device to IoT Server using ESP32-C3-WROOM-02.
40 parts4MIT - 2 layers80 × 100 mm
Baby remote
aamat09/baby-tracker-suite
Baby care tracking suite: HA dashboards, n8n workflows, PostgreSQL, ESP32-C3 remote with 3D-printed enclosure
17 parts4MIT - 2 layers40 × 60 mm
- 2 layers25.4 × 34.2 mm
C3 mini
sergiomd4/wemos-c3mini-clone
C3 Mini is a mini WiFi and Bluetooth5 (LE) board based on ESP32-C3FH4
32 parts4CC0-1.0 - 4 layers56 × 28 mm
Bx tacho
dazchi/bx-tacho
Open DIY Beyblade X launcher RPM meter: ESP32-C3 with IR sensors and an OLED, Bluetooth (Battle Pass protocol), and a browser app for shot data and firmware updates. KiCad hardware, ESP-IDF firmware, 3D-printed case.
51 parts3GPL-3.0 - 4 layers62.5 × 96.2 mm
- 4 layers42.4 × 66.1 mm
NB IoT PCB rev 1 1
JurCag/NB_IoT_app
Project utilizes NB-IoT technology to transmit sensory data to the cloud, while simultaneously enabling local communication through BLE mesh.
58 parts3