Here is the Booster Pack built. Tested and it works! I will be posting the code tomorrow after I clean it up some. Includes PWM for both channels and encoders (untested however). I will release a version with and without the encoders.
I finished this project last year for San Mateo Maker Faire but never made a video….TILL NOW!
Been awhile since I last posted but I am pretty much moved into my new place in Houston and getting back to my personal projects.
They just arrived today! This weekend I will solder one up and if it works I will start selling them.
It has been a week since my last post and I am sorry for that! I am currently moving to my new place in Houston where I work for Dynamic Perception. The Dual motor controller booster pack will arrive next Monday.
I finished the code for the demo for the VFD. It uses the 8 bit parallel bus. I am working on the serial bus version to save I/O lines and a MSP-430 C code version.
Today I wrote some code to get the IEE Flip VFD working. It has a fairly simple protocol and only took a bit of tweaking to get it working. I wrote the demo code for my Prop Dev Stick and will be uploading the SPIN code later once I finish the feature set.
After this I will write some C code for the MSP430 LaunchPad and get that working. The screen supports a serial input mode which saves 8 I/O pins but requires more timing. I will try to get that working as well.
I finally think I have a version of the motor driver that I like. I tweaked the traces around the 470uF cap to make the ground path better. I also changed the nSleep jumper header from a 2-pin to a 3-pin. The user can hard wire the nSleep high or low.
I finished up the PCB for the Motor Controller Booster pack. The PCB is all open source and you can download the files on the project page.
This is a Low Voltage, 2A motor controller BoosterPack for the Ti LaunchPad. So far I have not found a motor controller yet so I decided to make one. This is the first in many BoosterPacks I will be designing and selling. It uses the Ti DRV8833PWPR Dual H-bridge Motor Driver chip. The chip is capable of 2Amps per motor channel and a motor voltage from 2.7V to 10.8V. Logic voltage for the DRV8833 is 3.3V which makes it a perfect match for the MSP-430 LaunchPad.
I updated the board quite a bit over the past month and here is Ver 1.2 which will be the first production board!
Added a micro usb plug to compliment the mini usb plug and DC power jack. Made all the passive parts 0805 size to make the board easier to assemble. Tweaked the mounting holes a bit as well.
