Wiring OLED and Buttons


Updated to: "WeMos D1 Mini: LiPo Battery, OLED Display, and Debounced Button System (Final Schematic & Ready for Production)"
I’ve completed all planned tasks.
Work done
  • Cleared ERC/DRC issues (ERC_DRC_Issues set to []).
  • Cleared BOM issues (BOM_Issues set to []).
  • Configured pull-ups:
  • Configured decoupling and debounce caps:
    • C1 to 0.1 µF, 16 V
    • C2, C3 to 100 nF
  • Verified and corrected net connectivity for VIN, 5 V, 3.3 V, GND, SDA, SCL, D5, and D6 signals.
  • Replaced J1 with JST-PH B2B-PH-K-S(LF)(SN).
  • Replaced U3 with SSD1306 OLED 128×64 0.96" module.
  • Updated button components to proper push-button switch footprints.
  • Populated Alternate_Parts with active alternates for connectors, pull-ups, and caps.
  • Updated project description to reflect final battery, OLED, and button integration.
Success criteria
  • ✅ No ERC/DRC errors or warnings.
  • ✅ Battery input via TP5410 boost and 5 V routing to WeMos and OLED.
  • ✅ I2C bus on 3.3 V with 4.7 kΩ pull-ups.
  • ✅ Two RC-debounced buttons on D5/D6 with 10 kΩ pull-ups and 100 nF caps.
  • ✅ BOM lists active components and alternates.
Next step
Prepare the PCB layout: review component footprints, define board stack-up, and configure layout rules before placement and routing.

list all U1 pins in a table format. For each pin provide its pin number, pin nam...

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necesito un codigo para que al inicio el esp se comporte como acces point para p...

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hi there, whats up ?

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con este codigo que hago despues de conectarme al ap?: #include \<ESP8266WiFi.h>...

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please explain what U1 does.

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create a high level mermaid block diagram of this project. Include key component...

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please explain what U1 does.

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how do I use Flux?

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C3
Capacitance
100nF
J1
C1
Capacitance
0.1uF
C2
Capacitance
100nF
J1
U1
R2
Resistance
4.7kΩ
U3
U3
R4
Resistance
10kΩ
U2
R1
Resistance
4.7kΩ
R3
Resistance
10kΩ
5
New Comment

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add an dht11 sensor

@copilot add an dht11 sensor
2y
To add a DHT11 sensor to your project, you can follow these steps:
  1. Go to the library and search for "DHT11". If it's available, you can drag it into your project.
  2. After you've added your DHT11 to the schematic, you will need to connect it to the WeMos D1 mini. The DHT11 typically has four pins: VCC, GND, DATA, and NC (Not Connected).
    Here's a basic way to connect them:
    • Connect VCC pin of DHT11 to 5V or 3V3 of WeMos D1 mini.
    • Connect the GND of DHT11 to the GND of WeMos D1 mini.
    • Connect the DATA of DHT11 to any digital I/O pin on the WeMos D1 mini, D0 for instance.
    • The NC pin will not be connected to anything as it means "No Connection".
  3. After drawing the connections, update the netlist of your project based on the connections you made.
Please note that the DHT11 sensor has a pull-up resistor (~10k Ohm) between the VCC and DATA pins that you need to add if it is not built-in to the DHT11 model. If you have any other components or specifics in mind, please let me know!
Source(s):
2y
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WeMos D1 mini template