The picture showed the Heltec devices, however the devices they sent were a cheap clone that has the display mounted flat on the board instead of on the plastic spacer. I recently ordered some ESP32 WIFI HELTEC kits from. If you build one of these without using the new PCB (which nobody except me has anyway so far!) make sure to comment out this line. Some of the wiring changed so there is an important change in the sketch.
I am working on a new version with a PCB that also mounts the switch.
Please let me know if I have missed any of the files or if I need to add more details or photos. You could also just solder the wires in the holes instead of using the jumper wires that I used for the first prototype. I mounted 90 degree angle pins on the ESP32 so I could put the wires on sideways. It is a bit of wiring but I made one that works from the wiring diagram. It has mounts for the SD reader, the level shifter, and the ESP. I added the STL file for the no PCB version. You can wire it by hand, or if you're interested I have designed a PCB holding the components that makes assembly much easier. It can be used with either 1 meter with 144 pixels, or two meters with 288 pixels total. You can control the painter with a single hand! It rotates to make selections and clicks to choose things. Instead I added a single dial/button that is in the handle. I originally used the touch screen like others but after use I felt it was too clumsy to use. I redesigned it using an ESP32 with a built-in display. Like many others I started building this thing with an Arduino Mega but I soon ran into memory and speed issues.
#LIGHT PAINTING PIXELSTICK PDF#
I have attached a pdf file with a lengthy description of all the features of this design. Do a Web search for "pixelstick images" to see lots of example of what can be done with this tool. This is a feature rich variation on the PixelStick used for light painting photography.
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