https://www.cnx-software.com/2021/07/12/nodemcu-esp32-c3-wifi-ble-iot-boards/ Skip to content CNX Software - Embedded Systems NewsCNX Software - Embedded Systems News CNX Software - Embedded Systems News News, Tutorials, Reviews, and How-Tos related to Embedded Linux and Android, Raspberry Pi, Arduino, ESP8266/ESP32, Development Boards, SBC's, TV Boxes, Mini PCs, etc.. Wisblock modular IoT systemWisblock modular IoT system Menu * About + About CNX Software + Contact Us + Advertisement & Consulting Services + Work for Us + Support CNX Software + Privacy Policy * Development Kits + x86 & Arm Linux Development Boards + MCU Development Kits + Hackable Gadgets + My Hardware * How-Tos & Tutorials + Embedded Linux Development + Technical Glossary + AllWinner How-tos + AMLogic How-tos + Android How-tos + Automation & IoT How-tos + Freescale/ NXP i.MX How-tos + Raspberry Pi How-tos + Rockchip How-tos * Reviews * Shop + Buy Review Samples + Coupon Codes & Promos + Recommended Products Posted on July 12, 2021 by Jean-Luc Aufranc (CNXSoft) - 2 Comments on NodeMCU ESP32-C3 WiFi & BLE IoT boards show up for about $4 NodeMCU ESP32-C3 WiFi & BLE IoT boards show up for about $4 ESP32-C3 RISC-V IoT processor with 2.4 WiFI and Bluetooth LE 5.0 was unveiled in December 2020, and Espressif Systems' own ESP32-C3-DevKitM-1 board has been available in limited quantities as an "engineering sample". But now I've noticed third-party NodeMCU ESP32-C3 boards are being sold on Aliexpress for around $4 with ESP32-C3S_Kit and ESP-C3-01M-Kit both based on AI Thinker ESP32-C3 modules announced a few months ago. NodeMCU ESP32-C3S_KIt NodeMCU ESP32-C3S boardNodeMCU ESP32-C3S boardSpecifications: * Wireless module - AI Thinker ESP32-C3S (footprint compatible with ESP32-S / ESP32-WROOM-32D) with ESP32-C3 RISC-V processor @ 160 MHz, 2.4 GHz WiFi, Bluetooth 5.0 LE, 4MB flash, on-board PCB antenna, and IPEX connector (which may be soldered or not). * USB - Micro USB port for power and programming via CH340C USB to TTL chip * Expansion - 2x 15-pin headers with GPIO, SPI, UART, ADC, I2S, 3.3V, GND * Misc - RGB LED, Reset key, user-programmable key * Dimensions - 49 x 26 mm ESP32-C3 IPEX connectorESP32-C3 IPEX connectorWith or without IPEX connector ESP32-C3S_Kit is also called ESP-C3-32S-Kit with the datasheet available on AI Thinker website. You'll find the board for $4.29 on Aliexpress, or the just module for around $2.50. NodeMCU ESP-C3-01M-Kit ESP-C3-01-M developmentkitESP-C3-01-M developmentkitThis board has pretty much the same features but in a more compact form factor, provided height does not matter, and fewer I/O pins. ESP-C3-01M kit specifications: * Wireless module - AI Thinker ESP-C3-01M (previously known as ESP32-C3M) compatible with ESP-01M, with ESP32-C3 RISC-V processor @ 160 MHz, 2.4 GHz WiFi, Bluetooth 5.0 LE, 4MB flash, and an on-board PCB antenna. * USB - Micro USB port for power and programming via CH340C USB to TTL chip * Expansion - 2x 10-pin headers with GPIO, UART, SPI, ADC, I2S, 3.3V, GND * Misc - RGB LED, Reset key, user-programmable key * Dimensions - Approx 30 x 26 mm NodeMCU ESP32-C3-01M KitNodeMCU ESP32-C3-01M Kit Note that one of the SPI interfaces is gone. Again, you'll find the datasheet on AI Thinker website. The board is slightly cheaper at $3.55, but in my case shipping is more expensive. Software support None of the Aliexpress pages point to software resources for the NodeMCU ESP32-C3 boards. But AI Thinker documentation website has a dedicated section for ESP32-C3 modules and development boards. The company points to the ESP-IDF framework and offers a WeChat applet Bluetooth + WiFi dual control application demo together with source code. There's no support for NodeMCU Lua firmware at this time. The documentation also included datasheets for three more boards in a form factor similar to NodeMCU ESP32-C3S_KIt, but with other modules from the company: * ESP-C3-12F_Kit with ESP-C3-12F module equipped with 2MB or 4MB flash, and IPEX antenna connector * ESP-C3-13U_Kit with ESP-C3-13U module equipped with 2MB or 4MB flash, and IPEX antenna connector * ESP-C3-13_Kit with ESP-C3-13 module equipped with 4MB flash, on-board antenna, and IPEX antenna connector AI-Thinker ESP32-C3 development boardsAI-Thinker ESP32-C3 development boards jean-luc aufranc cnxsoftjean-luc aufranc cnxsoft Jean-Luc Aufranc (CNXSoft) Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011. Share this: Support CNX Software! Donate via PayPal or cryptocurrencies, become a Patron on Patreon, or buy review samples Tagsdevelopment board, esp32, IoT, nodemcu, risc-v Related posts: 1. Is NodeMCU ESP-32S Board Now Selling for $8.50 Shipped? 2. Arduino Cinque Combines SiFive RISC-V Freedom E310 MCU with ESP32 WiFi & Bluetooth SoC 3. Giveaway Week Winners - November 2019 4. ESP32-C3-DevKitM-1 RISC-V WiFI & BLE board to launch for $8, modules for $1.8+ 5. TinyS2 ESP32-S2 board is designed for battery operation Connect with: FacebookFacebook GoogleGoogle TwitterTwitter Subscribe Login Notify of [new follow-up comments ] [ ] [>] guestguest Label [ ] {} [+] [ ] [ ] Name* [ ] Email* [ ] Website [ ] I agree to the Privacy Policy The comment form collects your name, email and content to allow us keep track of the comments placed on the website. Please read and accept our website Terms and Privacy Policy to post a comment. [ ] [Post Comment] guestguest Label [ ] {} [+] [ ] [ ] Name* [ ] Email* [ ] Website [ ] I agree to the Privacy Policy The comment form collects your name, email and content to allow us keep track of the comments placed on the website. Please read and accept our website Terms and Privacy Policy to post a comment. [ ] [Post Comment] 2 Comments oldest newest Frank EarlFrank Earl Frank Earl 6 hours ago It really looks like a vastly improved 8266. I think I am interested in it for that reason alone. Reply GuidoLGuidoL GuidoL 4 hours ago Also 400k SRAM? Here I did only read about Flash-Memory Reply Advertisements Post navigation Previous PostPrevious PiSugar S and PiSugar S Pro - Lower cost batteries for Raspberry Pi Search for:[ ]Search Button IPI SMARC i.MX8M PlusIPI SMARC i.MX8M Plus Trending Posts - Last 7 Days * NodeMCU ESP32-C3 WiFi & BLE IoT boards show up for about $4 15.1k views | 2 comments * Kendryte K510 tri-core RISC-V AI processor deliver up to 3 TOPS 4k views | 16 comments * XiangShan open-source 64-bit RISC-V processor to rival Arm Cortex-A76 2.6k views | 8 comments * Reverse engineering the SDK for BL602 RISC-V WiFi & BLE microcontroller 2.4k views | 2 comments * Intel Alder Lake hybrid mobile processor family to range from 5W to 55W TDP (leak) 2.2k views | 7 comments SPONSORS Gateworks rugged industrial IoT SBCGateworks rugged industrial IoT SBC UGOOS products 2021UGOOS products 2021 RK3399Pro SBCRK3399Pro SBC DS03 digital signageDS03 digital signage Station M2 Geek ComputerStation M2 Geek Computer Advertisements Recent Comments * GuidoL on NodeMCU ESP32-C3 WiFi & BLE IoT boards show up for about $4 * Frank Earl on NodeMCU ESP32-C3 WiFi & BLE IoT boards show up for about $4 * rektide on ESP32-C3-DevKitM-1 RISC-V WiFI & BLE board to launch for $8, modules for $1.8+ * tkaiser on Intel Alder Lake hybrid mobile processor family to range from 5W to 55W TDP (leak) * tkaiser on Intel Alder Lake hybrid mobile processor family to range from 5W to 55W TDP (leak) Subscribe to Comments RSS Feed Advertisements Latest Reviews * CNX Laser EngravingCNX Laser EngravingLaser focusing on Laser Master 2 Pro and optimal line spacing Karl Here. 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