Chapter 8. Projects without wires

Why hobby electronics projects need wires, and how to get rid of them
Using Johnny-Five with different I/O plugins on different platforms
Configuring and working with the Tessel 2 development platform
Adapting to 3.3 V logic levels and different pin configurations
Deploying code wirelessly to the Tessel 2
Taking advantage of the Node.js and npm ecosystem to create more complex software for the Tessel 2
Using batteries to go fully wires-free with the Tessel 2

For this chapter, you’ll need the following:

1 Tessel 2 development board
1 USB A to USB micro cable
1 standard LED, any color
1 100 V resistor
1 Adafruit BMP180 multisensor breakout board
Any one of the following:
- 3 female header pins
- 2 lengths of 22-gauge, solid-core wire
- 9 V battery and snaps
Soldering iron and supplies
1 USB 5 V wall charger or similar, to power the Tessel 2
1 USB battery (sometimes called a power bank)
Jumper wires
1 half-size breadboard
Roving robot (motor-driving circuit and chassis) from chapter 6