Resistor Scanner is a tools app developed by MhTechDev.
How many times has Resistor Scanner been downloaded?
Resistor Scanner has been downloaded 830 thousand times. In the last 30 days, the app was downloaded 940 times.
What is the rating of Resistor Scanner?
Resistor Scanner is rated 2.62 out of 5 stars, based on 2.4 thousand ratings.
Is Resistor Scanner free?
Resistor Scanner is free to download. The APK download size is 89.79 MB. The latest version available is 5.1.6. The last update was on June 8, 2025.
What are the requirements for Resistor Scanner?
Resistor Scanner requires Android 6.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play December 2016.
Description
Tired of looking up resistor color codes? Using this app, you can get the resistance using your phone camera!
Features: - Automatic detection: No aligning of the resistor needed*, the app locates it automatically and analyses the rings - Live detection - Manual adjustment: Not the correct rings found? Tap and hold to correct them - Manual mode: Choose the ring-colors and get the resistance - Detect multiple resistors at once - Brightness and zoom sliders - Touch to focus - Load image from gallery
If there are issues, please send me a mail (attach screenshots)
* in the free version, resistors need to be placed horizontally
Recent changes: Drastic rework of most aspects of the algorithm. Improved UI. Support for automatic direction detection Pro version now supports freely oriented resistors Various fixes and improvements. Added faster performance mode Further detection improvements are on the way!
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This one of the BEST resistor recognition apps I've tried! I got loads done and sorted with it, mitigating the incompetence of a previous technician. Yes you do have to keep it horizontal but its very flexible and can attempt multiple components. I found a white background optimizes sucessvrate, too. Well done developers
★★★★☆Corey McCormick· Feb 15, 2026
Overall it seems to work but takes very specific lighting. Using an S22+ the flash creates glare that confuses it. A sheet of black EVA foam, construction paper or felt reduces the glare and improves the contrast. Link to upgrade and remove ads would not work. Just got it, so I don't yet know about long term. 100ohm vs 220ohm detection worked mostly if the light was good and the zoom was larger. The more focused zoom the better so far. That makes sense as it has more pixels to work with
★★★★★Ronnie D· Aug 18, 2025
Liked the app. 8 out of 10 times it shows the correct resistance value from the color codes. Helpful for those who are colorblind or sometimes even colors printed on some resistors have slightly different hues. I mainly liked the zoom and exposure sliders provided on the app screen. It would be nice if color hue adjustment could be added for using under yellowish fluorescent light. Although the app is too big in bytes it's good enough.
★★☆☆☆Dan Wilson· Jan 1, 2023
Sorry man, I wanted to give this tool a real good try, but I could never get it to detect the correct value on any resistor. I tried various white balance settings, brightness, etc. Nothing worked. Most of the time, the main problem is that it never detects a brown band properly. It always reads it as black. I tried different backgrounds as well, and also tried both 5% resistors (beige body) and 1% resistors (blue body). Also tried manual specifying the number of rings. I love that you tried.
★☆☆☆☆Tom Shaft· Mar 24, 2024
Reads wrong colors. Tried settings but not help.
★★☆☆☆Jakub Scepka· Jul 27, 2025
Unfortunately it doesn't work, the camera image is bad, the white balance is totally off. Values totally wrong. Uninstalling
Google Play Rankings for Resistor Scanner
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