---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 12/03/19: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:21 AM - Re: HomeBrew Engine Monitor (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 07:21:25 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: HomeBrew Engine Monitor At 08:10 PM 12/1/2019, you wrote: > >So, A few years ago, a friend gave me an 8 channel EGT/CHT system >that displayed on a small 2.8" screen that was stuffed in a 5"x5"x2" >box. A pain in my EZ, but it gave me EGT/CHT. I added a panel meter >to display MP. >Come the day of Arduino... I'm addicted, but a bit over my head in >some of the electronics - doing my best studying data sheets, >etc..., but would love a second or third set of eyes on what I'm >doing. Overall plan - full fledged engine monitor. An ambitious project . . . kudos. The easiest way to get a sense of your projects qualities is through the schematics. ECB art doesn't tell us much at this stage. >So far - DAQ in back by the engine - A Teensy 3.6 spewing serial >data via a MAX3232 to the cockpit. >I designed the air data computer, but it was pretty basic. My >magnetometer so far has been a fail - can't get it to calibrate. :? >I want to pull the trigger on this board, but would really >appreciate any inputs that the collective expertise here may have. >I'm way beyond myself on this one... I'm also more than willing to >share my design and code if that's of interest. Schematics with values first . . . >Questions: >Is my ground plane right? Tried to split analog and digital... Not generally useful on small boards especially since they eventually come together at Vss anyhow. >Am I asking for trouble with any of my signal routing? >Resistor and cap values logical? Any reason not to use 1% resistors >on a small project like this? >The 10uF power supply cap - tantalum? or is there a better option >for this these days? chip tantalums are fine. let's see the road-maps-for- electrons first . . . Bob . . . ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.