MoodDisplay
A Round Pin badge display! Powered by esp32c3 and a 1.28 in round display MoodBadge clips easily to your ID lanyard, keychain, belt, Bag, and so many more. You can easily express your mood or any animations you want to play on the display!
Created by
Axe
Tier 4
4 views
0 followers
Axe
added to the journal ago
My Schematic
As request of tanuki i have provided the schematic, please take note this specific jonrnal did not take an hour to make. please reduce the time of this project
Axe
added to the journal ago
Made the PCB and finished schematic
Made the PCB and finished schematic! Sorry if i forgot to jornal bc i was focused on other projects :(. Also this is the final pcb next jornal will be about CAD case
Here is the progress
Front:
Back: 
Components use
- 1.28 display is for displaying animations and current status like ex: social battery & current mood
- The main board is the xiao Esp32-c3, i picked this because it has inbuilt wifi/bluetooth and the coolest part it has its own BMS (which i can place a cheap 3.7 lithuim ion bat)
- The Sk led's are for the case light it can show different mood colors as well
- the push button is for rotating menus options
Why
- i placed the leds at the side so i can make the case glow into different colors
- the xiao is on top so it can charge easily and it is accessible
- i picked the round display so it can look like a badge!
- i placed the button so when i press anywhere of the case i can interact with it
- there is a hole in the back of the xiao so i can wire up the battery connections
- i used an esp32c3 so it can connect by wifi or ble
Axe
added to the journal ago
Made the schematic and footprint of 1.28in display module
So this was super hard "as in"
- i couldn't find any schematic or footprint online so i had to make it myself :(
- but i found an data sheet in an alibaba listing and made 1 from scratch which took so long
Made the schematic took 15 mins to do
#Added info!
-I did research by finding the cheapest listing of the parts that i might need such as an 1.28in oled.
- also researched the footprints of the module of the 1.28.
Axe
started MoodDisplay ago
3/1/2026 - Made the schematic and footprint of 1.28in display module
So this was super hard "as in"
- i couldn't find any schematic or footprint online so i had to make it myself :(
- but i found an data sheet in an alibaba listing and made 1 from scratch which took so long
Made the schematic took 15 mins to do
#Added info!
-I did research by finding the cheapest listing of the parts that i might need such as an 1.28in oled.
- also researched the footprints of the module of the 1.28.
3/12/2026 - Made the PCB and finished schematic
Made the PCB and finished schematic! Sorry if i forgot to jornal bc i was focused on other projects :(. Also this is the final pcb next jornal will be about CAD case
Here is the progress
Front:
Back:
Components use
- 1.28 display is for displaying animations and current status like ex: social battery & current mood
- The main board is the xiao Esp32-c3, i picked this because it has inbuilt wifi/bluetooth and the coolest part it has its own BMS (which i can place a cheap 3.7 lithuim ion bat)
- The Sk led's are for the case light it can show different mood colors as well
- the push button is for rotating menus options
Why
- i placed the leds at the side so i can make the case glow into different colors
- the xiao is on top so it can charge easily and it is accessible
- i picked the round display so it can look like a badge!
- i placed the button so when i press anywhere of the case i can interact with it
- there is a hole in the back of the xiao so i can wire up the battery connections
- i used an esp32c3 so it can connect by wifi or ble
4/8/2026 - My Schematic
As request of tanuki i have provided the schematic, please take note this specific jonrnal did not take an hour to make. please reduce the time of this project