README.md

RPI-PicoW-WolfSSL-Exp

Example for using TLS Socket on the Rasperry PI Pico W. Running inside FreeRTOS with a LWIP Socket which is then secured using WolfSSL.

Example does not use any predefined Keys or validate any certificates from the host.

Blog posts on this will be available on DrJonEA.co.uk and YouTube @DrJonEA.

Libraries

• FreeRTOS Kernel
• WolfSSL
• Pico SDK
• LWIP - included in Pico SDK

Examples: HTTPSGET

Example goes through a number of tests:

1. Connects to WIFI and checks connection
2. Performs HTTP Get against www.drjonea.co.uk. This will return a HTTP redirect to HTTPS site
3. Performs a HTTPS Get against www.drjonea.co.uk. This will return HTML, but large page so we truncate it

Build

Environment variables are used to configure the WIFI SSID and Password. Please make sure that these are set:

• WIFI_SSID - ID for your WIFI
• WIFI_PASSWORD - Password for your WIFI

To build:

mkdir build
cd build
cmake ..
make

Flash to Pico W.

STDIO

HTTPSGet/src/CMakeList.txt is defines to put STDIO on UART using GPIO 16 and 17. You may want to change this for your set up.