ESP32 Thing Plus Hookup Guide
The SparkFun ESP32 Thing Plus enjoys all the amenities of the ESP32 Thing, but with a few added sparkles. We've lengthened the board just a bit to accommodate a Qwiic connector for all your Qwiic breakout needs. We've also moved a few pins around to make the board compatible with the Adafruit Huzzah32 – ESP32 Feather Board such that you can use all of those lovely shields available out there! The ESP32 Thing plus also integrates a rich set of peripherals, ranging from capacitive touch sensors, Hall sensors, SD card interface, Ethernet, high-speed SPI, UART, I2S and I2C.
Not Yet Implemented: The Arduino board definitions for the ESP32 are still a work in progress. There are a handful of peripherals and features that have yet to be implemented, including:
Analog Input (
- Analog Ouptut (
WiFi Server and WiFI UDP
- Real-Time Clock
These peripherals are available (if, also, still in their infancy) in the IoT Development Framework for the ESP32. If your application requires analog input, RTC, or any of the features above, consider giving the ESP-IDF a try!
Update: Some of these features (
striked out), have been added to the Arduino core as of July 2019.
Much of the ESP32 Thing Plus's functionality can be used by simply powering the board. To do so, you'll need a Micro-B USB Cable. The ESP32 Thing Plus's USB interface can be used to both power and program the chip. Once you're done programming the chip, a 5V Micro-B USB Wall Adapter can be used to power the board.
Make sure your power supply is 5V, NOT 5.1V. We have noticed a power spike in our 5.1V power supplies that can damage the IC. Long cables can also generate a large enough voltage spike to damage the IC. We recommend keeping power supply cables shorter than 6 feet to minimize potential damage.
To avoid voltage spikes that might damage the IC, we recommend soldering a 10Ohm resistor in-line.
As an alternative power source, the ESP32 Thing Plus includes support for single-cell lithium-polymer (LiPo) batteries, which plug into the board's white 2-pin JST connector. LiPos are perfect for projects on-the-go, or those that just need a little extra umph. The board includes a LiPo charger -- the rechargeable batteries can be juiced back up by plugging the Thing Plus into a 5V USB source.
Should you wish to make use of the board's qwiic functionality, you'll need a qwiic cable:
To take advantage of the ESP32 Thing Plus's 28 external pins, you will need a soldering iron, solder, and general soldering accessories.
It may look intimidating, but the ESP32 Thing Plus -- especially when you take advantage of its Arduino compatibility -- is a perfect IoT foundation for electronics users of all experience levels. There are, however, a few concepts you should be familiar with before venturing further into this tutorial. If any of the concepts below sound foreign to you, consider reading through that tutorial first: