Greetings all!
I am going to fly a weather balloon with a payload that contains:
I want to get this payload back so the APRS Transmitter will tell me where it is every 60 seconds, but only as long as it has power, so I am using these large batteries.
The DTMF Receiver will help me communicate with the Raspberry Pi, which will be collecting weather data and taking pictures along the way.
By law, I have a 4lb limit for the payload, but I am well under that so far.
So to try to provide these three different power requirements, I have attempted to cobble together a circuit that will provide the three values.
I've based it mostly on what I have found using google, so I thought I would run this past you guys for your advice.
I am not sure what all the electrolytic capacitors are for, or what the non-electrolytic is for (.1uF? what's that going to do?)
The Bridge Rectifiers are a trick I learned in model railroading, as a means to protect polarity. The LiFe batteries have a non-polarized plug, which could be reversed, but now that I take a closer look, the red is in the middle of the 3 wire plug, so if I connect to ground/B+/ground that should be ok too.
Thanks in advance.
I am going to fly a weather balloon with a payload that contains:
- A Raspberry Pi Computer, which runs on 5v via a micro USB port
- A DTMF Receiver (http://byonics.com/mdtmf), which runs on 12v via screw terminal ports
- An APRS Transmitter (http://byonics.com/mt-1000) which runs on 6v via 4 AA batteries - I plan to add an external connector for external power on this device
I want to get this payload back so the APRS Transmitter will tell me where it is every 60 seconds, but only as long as it has power, so I am using these large batteries.
The DTMF Receiver will help me communicate with the Raspberry Pi, which will be collecting weather data and taking pictures along the way.
By law, I have a 4lb limit for the payload, but I am well under that so far.
So to try to provide these three different power requirements, I have attempted to cobble together a circuit that will provide the three values.
I've based it mostly on what I have found using google, so I thought I would run this past you guys for your advice.
I am not sure what all the electrolytic capacitors are for, or what the non-electrolytic is for (.1uF? what's that going to do?)
The Bridge Rectifiers are a trick I learned in model railroading, as a means to protect polarity. The LiFe batteries have a non-polarized plug, which could be reversed, but now that I take a closer look, the red is in the middle of the 3 wire plug, so if I connect to ground/B+/ground that should be ok too.
Thanks in advance.
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