NodeMCU ESP32-C3 WiFi & BLE IoT boards show up for about $4 - CNX

Espressif ESP8684 RISC-V WiFi & BLE MCU embeds up to 4MB flash in a 4x4mm package - CNX Software

ESP32-C3 is a single-core Wi-Fi and BT 5 (LE) microcontroller SoC, based on the open-source RISC-V architecture 32-bit RISC-V single-core processor

DIYmall NiceMCU-C3F V1.0 ESP32-C3 WiFi+Blue-Tooth Development Board, 4MB Flash 32-bit RISC-V Single-core Processor for IoT Smart Home (Pack of 3)

NodeMCU Pinout Reference, Microcontroller Tutorials

USB C ESP32 Development Board with WiFi, Bluetooth, BLE Support, ESP32-C3 Microcontrollers with Up to 160MHz Clock Speed, 4MB Flash, 384KB ROM, 400KB SRAM, Compatible with Arduino IDE : Electronics

NodeMCU ESP32-C3 WiFi & BLE IoT boards show up for about $4 - CNX Software

Espressif Leaks ESP32-C3: A WiFi SoC That's RISC-V And Is ESP8266 Pin-Compatible

NodeMCU Launches Sub-$5 Espressif ESP32-C3 RISC-V Development Boards

ESP32 Demo Board V2 Schematic - ESP32 Forum

ESP32-C3 Mini Development Board, Based on ESP32-C3FN4 Single-Core Processor 160MHz Running Frequency, Support 2.4GHz Wi-Fi & Bluetooth 5, Onboard 400KB of SRAM and 384KB ROM, 4MB Flash Memory : Electronics