Yongnuo YN-622C-TX E-TTL II Wireless Flash Controller for Canon Digital Camera Accessories A soldering iron and wire

A soldering iron and wire cutters are the bare minimum tools required

it’ll really help to dissipate even more potentially damaging heat

but it is large enough that it can be hand soldered

This is the Circuit Scribe Conductive Ink Pen

To use the CR Servo Trigger

Yongnuo YN-622C-TX E-TTL II Wireless Flash Controller for Canon Digital Camera Accessories A soldering iron and wireCompatible with Canon E TTL II Frequency: 2. 4 GHz Range: 328' TTL, Manual, and Multi Flash Modes Channels: 7 Groups: 3 LCD Screen & AF Assist Beam High Speed, 1st and 2nd Curtain Sync USB Port for Firmware Updates Runs on 2 AA Batteries Control multiple flashes equipped with the YN 622C E TTL II transceiver with the YN 622C TX E TTL II Wireless Flash Controller from Yongnuo . Compatible with Canon E TTL II cameras, this controller slides directly