Cheapo P-Mag Monitor and DataLogger

[petehowell]

I got some help from my old friend Brantel and put together a quick and dirty PMag monitor and SD card datalogger. It even creates a WiFI network to let you manage and download data files.

A cheap yellow display ESP32 board($12) and an RS232-->TTL ($2) converter board are all you need. You need some Arduino code, but I know a guy that will share for a beer(the code is ugly). TBH, the whole thing is not pretty, it's not elegant, but it works - and it's less than $15. So it's a lot like me...................

It will read Advance, RPM, MAP, Volts, and CPU Temp once a second. The MAP and temp data is pretty much junk - but I think that is on me and not P-mag.

The RPM and advance data makes a nice 2-axis graph - this was a sightseeing flight down the Mississippi:

Next step would be to marry this data up with he Dynon flight and engine data.

 

[AlexPeterson]

Excellent work Pete! Now, some black duct tape to fasten that to the panel and you will be set.

 

[petehowell]

Excellent work Pete! Now, some black duct tape to fasten that to the panel and you will be set.

Only yellow duct tape will be used for additional safety............

 

[MacCool]

Only yellow duct tape will be used for additional safety............

 

[Ironflight]

That….is awesome Pete!! I need four of them…..

(Actually, the coolest thing about the post is that plot - it really shows what goes on throughout the flight with the P-Mags!)

 

[lr172]

Only yellow duct tape will be used for additional safety............

Spoken like a true builder. A man after my own heart. Love seeing this kind of ingenuity.

 

[wirejock]

Following

 

[vlittle]

I got some help from my old friend Brantel and put together a quick and dirty PMag monitor and SD card datalogger. It even creates a WiFI network to let you manage and download data files.

A cheap yellow display ESP32 board($12) and an RS232-->TTL ($2) converter board are all you need. You need some Arduino code, but I know a guy that will share for a beer(the code is ugly). TBH, the whole thing is not pretty, it's not elegant, but it works - and it's less than $15. So it's a lot like me...................

It will read Advance, RPM, MAP, Volts, and CPU Temp once a second. The MAP and temp data is pretty much junk - but I think that is on me and not P-mag.

The RPM and advance data makes a nice 2-axis graph - this was a sightseeing flight down the Mississippi:

Next step would be to marry this data up with he Dynon flight and engine data.

I got some help from my old friend Brantel and put together a quick and dirty PMag monitor and SD card datalogger. It even creates a WiFI network to let you manage and download data files.

A cheap yellow display ESP32 board($12) and an RS232-->TTL ($2) converter board are all you need. You need some Arduino code, but I know a guy that will share for a beer(the code is ugly). TBH, the whole thing is not pretty, it's not elegant, but it works - and it's less than $15. So it's a lot like me...................

It will read Advance, RPM, MAP, Volts, and CPU Temp once a second. The MAP and temp data is pretty much junk - but I think that is on me and not P-mag.

The RPM and advance data makes a nice 2-axis graph - this was a sightseeing flight down the Mississippi:

Next step would be to marry this data up with he Dynon flight and engine data.

Well done, Pete.
I have done something similar, and I added a 2-channel oscilloscope function to display timing in-flight. Not yet ready for prime time, though. I hope the Hartzell acquistion of Emagair doesn’t end the technical support I am getting from Brad.

Keep up the good work! I think you've been on VAF for 20+ years.