Intro
This quick update in the Experimenting with Extreme Environments design challenge shows how the Raspberry Pi Pico connects to the Midas LCD using a custom PCB.
The display is mounted in a 3D printed white bezel that creates a contrasting background for the logos in the clear lid. I wanted to showcase the sponsor's artwork rather than hide it. It also serves to hide the interior wiring and make the whole package more aesthetically pleasing.
The PicoPorch box video
Discussion
The white bezel is mounted on wooden rods to place it up against the clear lid. These rods are cut from kabob skewers, which just happen to be a great fit for the mounting bosses in the base enclosure. The skewers cost about $2 for 100.
The bezel print did not work very well and ended up with some ripples, but it works well enough and it looks okay - I can always claim it is an "intentional" textured finish.
I have scavenged an AC outlet module and have acquired the rest of the power components to wire up the rest of this box although I am still missing a FET for the motor controller PCB. I may kludge on a smaller FET that I have since this motor only draws about 14 mA.
Links:
- Garden Secrets System
- ComputeCam and PicoPorch - Early Muddling
- PicoPorch and ComputeCam - The Motor System
- PicoPorch - LCD PCB & Bezel
- PicoPorch power wiring
- PicoPorch Motor Controller Demo
- PicoPorch System Demo
- PicoPorch Final Touches
- Deep Dive On Kit Components
- Backyard Secrets 1
- MotionEyeOS Tutorial
- Garden Secrets Project Summary
- Experimenting with Extreme Environments Design Challenge
- Pi 4 Compute Module Datasheet
- Pi 4 Compute Module I/O Board Datasheet
- Midas Display Datasheet
- Enclosure Drawing
- Enclosure Manufacturer Page
- Antenna Datasheet
- Connectors Datasheet