These are sketches I have found to run on my own 1.4" x 0.7" ESP32 development board pictured below.
These are mostly for using I2C sensors with the ESP32 but I intend to make use of all of the peripherals of the ESP32 and I will post working sketches as I do so. The board is open source and the design can be found here. Now you can buy this ESP32 Development Board on Tindie.