I’m currently powering my robot via cable and mains adaptor. This works fine but. I need to power it by battery so it can roam around a room. I’ve looked at which batteries to get, and I guess I’m going to get something like a NiMH battery. LiPo sound like a good idea, except for the whole exploding/setting on fire thing, the robot will be left alone while charging and if I burn down the office no-one is going to be pleased. So I’m thinking of buying something like this NiMH battery for my robot.
The problem I have is how to charge the battery. The robot needs to “dock” and charge unattended, rather than have someone change it’s batteries manually so standard consumer battery chargers are out. I also need to get charging status somehow so I can get remote status / prevent the robot from moving off until the battery is charged so some sort of SPI/I2C interface will be needed (the docking station will be a Raspberry Pi).
Unfortunately I have 0 surface mount skills, or confidence that I could make a circuit out of that that would work so I need some help:
- Does anyone have any suggestions for boards that already exist that use a chip like this…
- …or suggestions as to how I could handle the charging?