Simple PWM display

Arduino projects on the go
User avatar
RON
Site Admin
Posts: 613
Joined: 12 Jun 2017, 15:09
Location: Stokesley North Yorkshire

Re: Simple PWM display

Post by RON »

They are perfect for SC Transmitter meters, so small, they mount on the back of a 0.96 oled and don't take any room up

Ron
G0MBV Class A Radio Amateur, North Yorkshire
User avatar
tiptipflyer
Posts: 393
Joined: 16 Feb 2018, 22:49
Location: Germany

Re: Simple PWM display

Post by tiptipflyer »

Thanks Phil for this little project. It works great.
Mine did not need any pullup-resistors.
SAM_3793.JPG
Frank
User avatar
RON
Site Admin
Posts: 613
Joined: 12 Jun 2017, 15:09
Location: Stokesley North Yorkshire

Re: Simple PWM display

Post by RON »

here is a slight variation to Phil's simple tester,
using a128x64 oled, I've incorporated a rx battery level meter too.
Notice this Oled is the split screen yellow/blue version which works nicely on this one

Ron
IMG_2093.jpg
G0MBV Class A Radio Amateur, North Yorkshire
User avatar
Wayne_H
Posts: 808
Joined: 17 Feb 2018, 05:26
Location: Temora, NSW. Australia
Contact:

Re: Simple PWM display

Post by Wayne_H »

I made one too! I added the pull up resistors "just in case". So simple yet so useful.
20201119_182448.jpg
A great little device I must say :P
Cheers,

Wayne
Once a Retrobate, always a Retrobate............ ;)
Mosfets
Posts: 60
Joined: 18 Feb 2018, 20:14

Re: Simple PWM display

Post by Mosfets »

I also made one, it is a really useful design.

I found that if powered by a battery alone it would give erroneous readings if my hand was near the connector but adding a 10k pull down resistor cured that problem.

I chose to box mine with a cheap and cheerful servo tester. The PWM meter is on its flying lead still so I can monitor either a receiver or the tester output.
PWM Servo Tester.jpg
User avatar
Wayne_H
Posts: 808
Joined: 17 Feb 2018, 05:26
Location: Temora, NSW. Australia
Contact:

Re: Simple PWM display

Post by Wayne_H »

Ade, I like it! I have the same cheap & cheerful server test - gotta love that Engrish :lol: :lol:
Cheers,

Wayne
Once a Retrobate, always a Retrobate............ ;)
Post Reply