Adafruit NeoPixel Ring 12 Leds Fitting Cover

thingiverse

I integrated a 12 pixel neopixel ring into my printer to act as a temperature gauge when warming up and cooling down, then just a random color fading widget while at temp. I used FKOne's mount as a backing to attach it to my printer. It needed a little bit of a diffuser and I had some glow-in-the-dark filament handy so I made this snap fit cover for it. The result is three 0.3mm layers of solid fill glow-in-the-dark filament and a ring that snaps over the frame. I might add a few more layers later or make it stand off of the frame a little further, but I'm satisfied with it for now. Let me know if you're interested in my wiring and code. UPDATE 8/6/2017 Here are the changes I made to my Marlin code: Add the Adafruit Neopixel library .h and .cpp files to the same folder as Marlin. Find the function "void manage_inactivity" and add the following to the last line of the function: "dispTempGauge(); //Calls Dan's temp gauge". Add the following function (I added it below the Temp_Stat_LEDs function): // Begin Dan's Custom Coloring!! unsigned long previousMills = 0; unsigned long currentMills = 0; int gauge_type = 2; //default to display off int guage = 3; void dispTempGuage(){ int8_t cur_extruder = 0; currentMills = millis(); if (currentMills - previousMills > 200) { // Update every 0.2s previousMills = currentMills; if ((isHeatingHotend(cur_extruder)) && (degTargetHotend(cur_extruder)>100.0) && ((degTargetHotend(cur_extruder)-degHotend(cur_extruder))>2)){ //if heating up && target is set high && not there yet gauge_type = 1; }else if(degHotend(cur_extruder)>150.0){ //if not heating and temp is above minimum then dance gauge_type = 2; }else if(degHotend(cur_extruder)>30.0){ //when done dancing then show cool down from prev temp setting? gauge_type = 3;//busy printing }else{ //if none of the above then the printer must be idle. turn all lights off. gauge_type = 0; //lights off } switch (gauge_type){ case 0://off for(int i=0;i