How to Build an Android App Part 5: Arduino ADK – Working with Digital Outputs – XDA Developer TV
How to Build an Android App Part 4: Illumination Software Creator – XDA TV
How to Build an Android App Part 3: Arduino Development
How to Build an Android App Part 2: Writing a Root App
How to Build an Android App Part 1: Setting up Eclipse and Android SDK
I'm going to do a video which will be referenced in a future episode. The idea is to make a video which shows how you can upgrade most home electronics devices by augmenting it with an Android device and an Arduino ADK. I will be modifying a small kids piano to be triggered with relays. I've decided to demonstrate with relays only because they can easily bypass existing switches and they are a good automation tool.
I want to emphasize that these same techniques can be used to control almost any type of touch panel electronic device, but I want to make sure people watching my videos don't cause fires or shock themselves... So I want you guys to help me out with some good tips for "developers"(people not expected to know electronics) who may want to start hacking electronics. I will link this thread into my video so my viewers can come here and absorb everything.
Safety while modifying electroincs with Arduino ADK
- Never work on a device with power applied.
- Always expect a fire and monitor for excessive heat buildup while testing operation. Be ready to disconnect power and have a fire extinguisher ready.
- Relays may be used in place of most momentary(switch) push buttons, but be VERY careful when replacing throw switches as they generally carry more current. This can be seen in coffee pots.
- Accept that while modifying electronics, you may damage them.
In my opinion: Choose a small form-factor 5V relay with a rating of at least 24VDC-120VAC for most USA home electronics. But I'm not sure about overseas ratings.
I'm expecting this to inspire quite a bit of android home electronics hacking/augmentation/automation. So, if you have some good advice for electrical noobs, please post it here... You know, Safety first.