Hi Guys,
i need a little bit help with the Servo hat..
so what i've donse do far :
- I enabled the i2c : https://learn.adafruit.com/adafruits-ra ... guring-i2c
- then i tested the i2c with this : https://learn.adafruit.com/adafruit-16- ... st-the-hat
everything seems to work till here...
- then i attached a Servo (Micro Servo 9g SG 90 ) to the Servo hat
- i cloned the example code from git
- and ran the code with python : https://learn.adafruit.com/adafruit-16- ... on-library
The Problem ist nothing happen ...
in the example it seems that there appear thins like reseting or PWM frequency etc ... but when i run the ccode nthing happens ..
https://learn.adafruit.com/assets/22059
anyone any ideas ?
Thanks advance :)
Help Servo Hat 16 Channel Raspberry Pi 3
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Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/
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- adafruit_support_mike
- Posts: 67485
- Joined: Thu Feb 11, 2010 2:51 pm
Re: Help Servo Hat 16 Channel Raspberry Pi 3
Post a photo showing your hardware and connections and we'll take a look. 800x600 images usually work best.
- GioCa
- Posts: 4
- Joined: Wed Nov 15, 2017 4:33 pm
Re: Help Servo Hat 16 Channel Raspberry Pi 3
Sorry For the late answer .. Here are some Photos ..
- Attachments
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- IMG_20171119_235010-iloveimg-resized.jpg (266.1 KiB) Viewed 864 times
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- IMG_20171119_235502-iloveimg-resized.jpg (174.74 KiB) Viewed 864 times
- adafruit_support_mike
- Posts: 67485
- Joined: Thu Feb 11, 2010 2:51 pm
Re: Help Servo Hat 16 Channel Raspberry Pi 3
The soldering on the stacking headers looks good..
What are you using as a power supply for the servo?
What are you using as a power supply for the servo?
- GioCa
- Posts: 4
- Joined: Wed Nov 15, 2017 4:33 pm
Re: Help Servo Hat 16 Channel Raspberry Pi 3
AS Power SUpply i am using only the power supply for the raspberry 5.1 V 2.5 A ... i thought it is enough for one servo ... or do i have to connect also a power supply at the hat ?
- lbendlin
- Posts: 50
- Joined: Thu Nov 14, 2013 11:41 pm
Re: Help Servo Hat 16 Channel Raspberry Pi 3
Most likely, yes. Servo motors tend to pull the Pi Vcc down deep enough to cause it to reboot.
- adafruit_support_mike
- Posts: 67485
- Joined: Thu Feb 11, 2010 2:51 pm
Re: Help Servo Hat 16 Channel Raspberry Pi 3
Yes, you need a second power supply.
The Servo Hat doesn't connect power from the RasPi to the servos. Even if the RasPi's power system could handle the load, servos (like all motors) generate a spikes and dips on the supply rails. Those would crash the RasPi on their own.
The Servo Hat doesn't connect power from the RasPi to the servos. Even if the RasPi's power system could handle the load, servos (like all motors) generate a spikes and dips on the supply rails. Those would crash the RasPi on their own.
Forum rules
Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/
Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/