This handy servo driver allows you to operate your servo or ESC w/o turning on your Tx. Great for workbench set up or field set up when Tx is impounded. This newly updated version has two new features.
Precise Centering Indicator: All servo drivers let you control ESC. MX8340 also allows you to set precise neutral point for perfect servo setting.
Servo Cycler: Variable speed cycling for servo testing and break-in.