Good morning all. Been using the Photon for almost 5 days now (since I got it at a Hackathon) and I’m going to be using again at an upcoming Hackathon this weekend. I was wondering what limitations are on the device. I have never messed with a circuit board or anything at all similar to the Particle. I don’t know much about electrical engineering either, but hey I can use Google
Anyways, I wanted to know the feasibility of hooking the Photon up to my car stereo. I understand that there is a difference in volts, since the Photon can give off 3.3v. I guess I’d also like to know what other devices can be hooked up to the Photon (I need hack ideas).
This is my skill level with the device: Got two of them installed and running on my Mac and Windows OS (that’s an accomplishment in and of itself). I attached one with a PIR Motion Sensor and have it communicating to another Photon to make it mpve and sending push notifications to my phone when there is motion detected. The other Photon I attached 2 servos and 2 leds and put them inside a stuffed doll to make it look like a robot. I then created an online GUI to control the robot.
(potentially endless) Opportunities with Particle Photon?
…may be a more accurate/positive title, given the contents of your Post!
Limitations On Particle Photon?…seems to suggest that the Photon has some unexpected limitations for your needs.
Your car will likely have >12V supply with potentially higher spikes, but the internals of the stereo could well have 3V3 & 5V power rails available. The photon is powered off ~5V via USB and many pins are 5V tolerant. You should check the max voltage for powering the Photon directly, in the data sheet or by searching the forum & google.
Make sure to get the Photon into low power mode or OFF - to avoid draining the car battery when the car is parked.