Comments (1)
You can connect it directly to a GPIO pin, please see this thread here which explains why there's no issue: #2
The reason you are getting zero is GPIO 21 doesn't have the internal pullup resistor enabled by default like GPIO 15. You need to either choose a pin where you can enable the internal pull up resistor (depends on the model of Pi) or use an external pull up resistor.
The reason the LED is coming on is also because you don't have the pullup resistor enabled, so the LED is grounding through the Pi.
from lipopi.
Related Issues (20)
- Auto Power on part Deux HOT 26
- low battery light always on HOT 2
- using other pin than 14 HOT 1
- EN pin on Vs instead of Bat ? HOT 3
- Configuring the serial port without raspi-config HOT 1
- Recommended code change HOT 8
- Hold button 3 seconds to shut down HOT 1
- step 13 not working. Pi powers off when releasing button HOT 4
- error during run process HOT 1
- Wiring from PowerBoost 1000c to RPi 3 B HOT 1
- Is it possible to use other pins that are not UART? HOT 2
- Why is wire to GND needed? HOT 11
- Using other DC-DC converters HOT 1
- Bateria Raspberry
- Variant for reusing switch for soft powerdown HOT 9
- Power down while charging => immediately off HOT 6
- On-Off switch suggestion HOT 2
- Remove transparency from diagrams HOT 1
- Hum noise HOT 5
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from lipopi.