Try the following serial commands in the serial monitor:
Some more available commands:
Only the position of the buttons matters, though those symbols can help you remember the functionalities. I’m going to define position-related symbols to refer to those keys.
I’m using abbreviations for key definitions to reduce SRAM usage. Due to the limited keys of a physical remote, I always change the definitions for fun.
Rest puts the robot down and shuts down the servos. It's always safe to click it if Bittle is doing something AWKWARD.
Balance is the neutral standing posture. You can push Bittle from the side, or make it stand up will hind legs and tail. You can test its balancing ability on a fluctuating board. Actually balancing is activated in most postures and gaits.
Shut down servos will pause the current motion and turn off the power of the servos so that they will not hold the position.
Pressing F/L/R will make the robot move forward/left/right
B will make the robot move backward
Calibrate puts the robot into calibration posture and turns off the gyro
Stepping lets the robot step at the original spot
Crawl/walk/trot/run are the gaits that can be switched and combined with the direction buttons
Gyro will turn on/off the gyro for self-balancing. Turning off the gyro can accelerate and stabilize the slower gaits. But it’s NOT recommended for faster gaits such as run and bound.
Buttons after trot are preset postures or other skills
Different surfaces have different friction and will affect walking performance. The current trained parameters work better without the silicone toe covers. They are provided for your experiments. The carpet will be too bushy for Bittle's short legs. It may only crawl (command kcrF) over this kind of tough terrain.
You can pull the battery pack down and slide along the longer direction of the belly. That will tune the center of mass, which is very important for walking performance. Otherwise, it may keep falling down.
When Bittle is walking, you can let it climb up/down a small slope (<10 degrees)
Whatever Bittle is doing, you can lift it vertically, and it will stop moving, just like a dog scruffed on the neck.