Wires not allowed.

If wires are not allowed between devices, then go wireless!
Usage: Bluetooth remote control for various projects.
(2x) HM-10 + (2x) Arduino Unos + (2x) sensor shield v5.0 + (optional) FTDI USB to UART adapter = look mom, no wires between the Arduinos!
Anyone have tips on how to effectively use and program two HM-10 Bluetooth 4.0 BLE modules? I'm getting confused about the master and slave roles, and which commands are for which role.
#3dprintergiveaway

[Original post on May 14, 2020 2:22PM PST on Facebook]