DD Underwater Thruster TD1.2 Tutorial

The Diamond Dynamics TD1.2 underwater thruster set consists of two main components, the thruster and the ESC. Many developers of small underwater ROVs and AUVs buy small thrusters with a thrust of 1-2 kg, the Diamond Dynamics TD1.2 underwater thruster is used by many people.
 
Let's take a look at the detailed components of the TD1.2 thruster. The main body of the thruster consists of five parts: the duct, the propeller, the rear cover, the waterproof glued brushless motor and the waterproof ESC.

The TD1.2 has a choice of clockwise and counter-clockwise rotating propellers, which are usually purchased in pairs, i.e. one CW and one CCW.
 
Next we wired up the TD1.2, we are currently selling it with an operating voltage of 12V (3S), so don't work with a voltage greater than 12V, also the TD1.2 with ESC is without BEC, so if you control it with a remote control you need to power the receiver of your remote control separately.
 
The TD1.2 is controlled by a PWM signal in the range of 1ms-2ms; the ESC we are equipped with supports bi-directional control, so 1.5ms~2ms is to control the thruster clockwise rotation, 1ms~1.5ms is to control the thruster counter-clockwise rotation, and 1.5ms is to stop the rotation in the neutral position.
 
OK, now that we've wired it up, we turn on the power and the rear propeller will beep-beep-beep three times, which means it's on properly.
 
Then we push the remote control throttle and give the ESC a 2ms or 1ms maximum speed signal and there will be a beep.
 
Give the ESC another 1.5ms stop signal with a beep.
 
Once the above steps have been completed, the speed control of the thruster can be started.