Close

Progress Report

A project log for Open LIDAR

This project is to build a motorized gimbal mount to convert a laser distance module into a 3d LIDAR.

caveradamcaver.adam 09/08/2016 at 02:300 Comments

Made some progress on the project over the last two days.

1) Steppers - working

2) Bluetooth - working (only outputting serial at 9600 baud)

3) microSD card - working to write data

4) hall effect sensor - working (switching mode only)

5) SF30-b Laser Distance - arrived in the mail this evening.

6) schematic - partially completed (needs bluetooth update and SF30 verification)

7) pcb - part layout completed pending verification of connections for traces

8) gitHub - up to date

I had a little snafu last night with the bluetooth module. Somehow as I was going through connecting GND to GND and Vcc to Vcc I was on autopilot and hooked up the TX of the arduino to the TX of the bluetooth. Nope, today it him me that TX goes to RX and RX goes to TX. Doh, senseless waste of 2 hours.

Second pause happened tonight and took me about 15 minutes to figure it out. My trinket pro is only capable of outputting 150mA on the 5V pin and the SD card requires over 100mA by itself. No biggie, I temporarily changed to the BUS output at 500mA. This problem will go away when the board is powered by my 2A regulator (12V to 5V). I just had the 12V put away because I had too many wires in the way while testing these new modules. Oddly, this only took 15 minutes to fix and the super easy bluetooth issue took 2 hours. Oh well.

Discussions