Post subject: Noob needs help with a Project (Raspberry Pi + Servo Driver)
Active player (471)
Joined: 2/1/2014
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https://learn.adafruit.com/adafruit-16-channel-servo-driver-with-raspberry-pi/hooking-it-up I am not very hardware savvy so I have absolutely no idea what I am supposed to connect from the breadboard(white board) to the I2C Interface (the top blue board). Another question cause I'm an idiot, do i need to solder? some of the pieces of the I2C do not hold together. I know my bro has a soldering iron so that would be pretty easy to do. Heres what I got so far:
Editor, Player (68)
Joined: 1/18/2008
Posts: 663
You can hook it up as shown in the link. The ribbon will connect to your Pi and provide power and the I2C comms (as well as everything else) to the breadboard. The "top blue board" (your boards are left and right of eachother) is not "i2c interface," it is a servo driver that communicates using I2C. You will need to solder those headers to the servo driver board so you can plug your 3-wire connections into them. You will also need a separate 5V PSU.
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Active player (471)
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http://imgur.com/a/y9ImF Pretty sure This is NOT how you are supposed to solder.. I think my iron got too hot? it was burning off so much solder and none was falling off the soldering iron. Also couldnt figure out how to not attempt to connect all them with one big ass blob like I ended up doing. Will I burn my house down with this?
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Joined: 9/11/2004
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solarplex wrote:
http://imgur.com/a/y9ImF Pretty sure This is NOT how you are supposed to solder.. I think my iron got too hot? it was burning off so much solder and none was falling off the soldering iron. Also couldnt figure out how to not attempt to connect all them with one big ass blob like I ended up doing. Will I burn my house down with this?
The spikiness is because you took too long and the flux in your solder evaporated away. You're also using way too much solder and applying it wrongly. To fix this: 1. Grab some Copper wick. 2. Grab some liquid flux. And paint it on the blob, but just the blob, this will help melt the blob faster and help with wicking. 3. Wick away extra solder. You'll probably use a lot of wick. (Low temperature setting) 4. Ensure that your previous efforts haven't resulted in pad damage (probably not) or component damage (maybe). 5. Grab some flux and use a little in the area where you want the solder to go (just the pad and a small amount in the throughhole and up the wire. 6. Apply heat to the wire, not the solder, where you placed the flux. (High temperature setting, high on the wire) 7. When the wire gets hot enough, apply solder to the wire near the throughhole. It will melt and cling to the wire because of the flux, and down and around the throughhole. 8. Remove the solder and iron when you have a very slightly concave inward conic shape. 9. Use alcohol to clean up extra flux and inspect work to make sure you're not shorting.
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