All Previous Posts
http://www.element14.com/community/tags#/?tags=iot_firecracker&ICID=intheair-15grid
Prelude
I had initially planned to make an evergy harvester circuit around the BQ25504 which was one of the parts from Texas Instruments for this challenge. I managed to assemble one board partially since the size was so small that I managed to destroy three chips before getting one to work. Once I got it to work, I posted some information about my results. Related posts are
- [Firecracker Analyzer] Making the Power PCB with Eagle, TI BQ25504, TPS62740 and TPS61200
- [Firecracker Analyzer] Creating a Wireless Sensor Node using TI's stuff.
- [Firecracker Analyzer] Hot air assembly of TI Solar Harvester
- [Firecracker Analyzer] Successful QFN Assembly
- [Firecracker Analyzer] Testing the Texas Instruments BQ25504 - Success?
In this post I present a video demo of the circuit.
The Video
THe first thing is to present the working circuit with the issues I am facing.
The thing that I did not mentioned in this video is that the Cap charges to 3.8V or so which may be one reason for the output being disabled.
Next step
I have put this circuit on the back burner and wanna request for more samples of the BQ25504 to assemble more boards and compare them. Right now I am stumped! I will be copmpleting the rest of the build using TI's Fuel Tank booster packs but will come back to this once I have more boards built up.
Cheers
IP