LILYGO T8-C3

ESP32 C3
LILYGO T8-C3

LILYGO T8-C3 is a compact ESP32-C3 development board featuring Wi-Fi, BLE 5.0, 4MB flash, TF card slot, and USB Type-C, requiring the T-U2T adapter for programming.

ESP32-C3400KB SRAM4MBWiFi 802.11 b/g/nBLE BLE 5.0
~$10View

LILYGO T-OI Plus

ESP32 C3
LILYGO T-OI Plus

LILYGO T-OI Plus is a compact ESP32-C3 development board with Wi-Fi, BLE 5.0, Grove connectors, and optional 16340 battery holder, designed to fit Sonoff BASICR2 enclosures.

ESP32-C3400KB SRAM4MBWiFi 802.11 b/g/nBLE Bluetooth 5.0 + Mesh

LILYGO T-01C3

ESP32 C3
LILYGO T-01C3

LILYGO T-01C3 is an ultra-compact ESP32-C3 RISC-V module with Wi-Fi and BLE 5.0, available with or without pre-soldered pins, featuring 5.33µA deep sleep current.

ESP32-C3400KB SRAM4MBWiFi 802.11 b/g/nBLE BLE 5.0

LILYGO T-Keyboard

ESP32 C3
LILYGO T-Keyboard

Compact ESP32-C3 keyboard terminal with a built-in 0.99" display, Wi-Fi, Bluetooth 4.2, 400mAh battery, and a 3D-printed shell for portable wireless input applications.

ESP32-C3400KB SRAM4MBWiFi 802.11 b/g/n 2.4 GHzBLE BLE 4.2
~$19View

Shelly Plus 1

Relay Module
Shelly Plus 1

ESP32-C3 based WiFi/BLE smart relay module with 16A switching capacity, dry contact input, and compact DIN-rail or in-wall form factor. Flashable with Tasmota or ESPHome for local smart home control.

ESP32-C3400KB SRAM4MBWiFi 802.11 b/g/nBLE BLE 5.0
~$12View

Sonoff MINIR4 Extreme

Relay Module
Sonoff MINIR4 Extreme

Ultra-compact ESP32-C3 WiFi smart switch module with 10A relay, detached switch mode, and the smallest form factor in its class. Fits any wall box. Flashable with Tasmota for local control.

ESP32-C3400KB SRAM4MBWiFi 802.11 b/g/nBLE BLE 5.0
~$10View

DFRobot Beetle ESP32-C3

DFRobot Beetle ESP32-C3

Coin-sized ESP32-C3 RISC-V IoT development board with WiFi, BLE 5.0, integrated LiPo charging, 13 GPIO pins, and USB-C in a 25x20.5mm form factor.

RISC-V single-core @ 160MHz, HW crypto (AES/SHA/RSA)400KB SRAM4MBWiFi 802.11 b/g/nBLE BLE 5.0

Heltec ESP32-C3 Arduino Development Board

Dev Board
Heltec ESP32-C3 Arduino Development Board

Ultra-compact RISC-V development board with ESP32-C3FN4, WiFi, BLE 5.0, integrated battery management, and USB-C — ideal for low-power IoT sensor nodes and wireless prototyping.

RISC-V 32-bit single-core @ 160MHz, hardware crypto (AES/SHA/RSA/ECC)400KB SRAM4MB (SiP)WiFi 802.11 b/g/nBLE BLE 5.0

Heltec HT-CT62

module
Heltec HT-CT62

Ultra-compact ESP32-C3 + SX1262 LoRa/LoRaWAN module with WiFi and BLE, designed for SMT integration into IoT devices. Features 10uA deep sleep, +21dBm TX power, and Meshtastic compatibility in a tiny

RISC-V RV32IMC single-core @ 160MHz, HW crypto (AES-128256, SHA, RSA, HMAC, ECDSA)400KB SRAM4MB SiPWiFi 802.11 b/g/n 2.4GHzBLE BLE 5.0

Heltec HT-M00S Single Channel LoRa Gateway

Lorawan Gateway
Heltec HT-M00S Single Channel LoRa Gateway

A compact, wall-mountable single-channel LoRaWAN gateway based on the HT-CT62 module (ESP32-C3 + SX1262). Designed for indoor use with a built-in PCB antenna, it can listen to over a dozen LoRa nodes

RISC-V single-core @ 160MHz, 4-stage pipeline400KB SRAM4MB SiP FlashWiFi 802.11 b/g/nBLE BLE 5.0
~$18View

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More to explore — popular traits shared by devices with RAM: 400KB SRAM.