Low cost highly integrated solution for wireless IoT devices 1.99 US$ PADI IoT Stamp 2.4 GHz Wi-Fi 802.11 b/g/n Low power technology suitable for battery operation I2C / SPI / PWM / UART / GPIO Integrated 1 MB Flash and 512 KB RAM 32-bit ARM Cortex M3 FeaturesResourcesBuy Quick Start Guide PADI IoT Stamp Quick Start Guide Software & SDK Ameba RTL8710AF SDK ver v3.5a GCC ver 1.0.0- without NDA OTA Application Note OTA Download Server Firmware Image Tool PADI IoT Stamp Firmware Recovery AT Command Version 2.2 Application Note Documentation & References PADI IoT Stamp Datasheet PADI IoT Stamp Antenna Performance Test Report PADI IoT Stamp Wi-Fi Performance Test Report PADI IoT Stamp Pinout Diagram JTAG/SWD Connections Diagram FreeRTOS Tutorial OpenOCD Tools & Drivers CH340G USB-Serial Driver (Windows 98/ME/2000/XP/Vista/7/8/8.1/10/2003/2008/2012 – 32-bit/64-bit) CH340G USB-Serial Driver (Mac OS X) CH340G USB-Serial Driver (Linux) Putty (Serial Terminal)