Earlier this month we covered Air602 low cost Arm WiFi module, and while it’s not clear whether it will ever compete with ESP8266 due to software support, some readers noticed an interesting new chip on the corresponding development board: WCH CH330N USB to serial chip with features similar to CH340, but less pins (e.g. DTS, and CTS are missing), and available in a tiny SOP8 package.
CH330N comes with built-in crystal oscillator, and supports baud rate from 50 bps to 2 Mbps. You’ll find more hardware technical details in the datasheet in Chinese.
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.