ESP32 DC Load Controller Design
1:02
Determining the mode.
Thinking deeply about your request.
Considering tool usage for planning.
Planning the user request.
Working on your request.
Focusing on requirements capture.
Your goal is to turn this ESP32 reference design into a compact 24 V DC PWM load controller with the interfaces and sensing you listed.
- I’ve created the plan to:
- Update power for 24 V input and ESP32 regulation
- Add BTF3050TEATMA1 PWM load drivers and screw terminals
- Add JST switch, sensor, and conditioned analog inputs
- Add Qwiic OLED and compact layout constraints
Click Start on the plan bar to begin.
Plan
- Modify the existing ESP32-WROOM-32E reference design into a compact 24 V DC PWM load controller. Use the ESP32 to control high-current DC loads (3 A to 10 A) with BTF3050TEATMA1 output drivers while integrating multiple external interfaces including screw-terminal style load connectors, JST-connected momentary switches, I2C OLED over Qwiic, a presence sensor input, a nearby TO-92 temperature sensor, and additional conditioned analog inputs via JST connectors.
#Implementation plan
-
System Functional Review & Architecture Update
- Update the project description to include the 24 V load control requirement and high-current handling for DC loads (3 A to 10 A).
- Revise the power supply stage to ensure 24 V is routed properly for load driving while protecting the ESP32’s 3.3 V supply.
-
Load Control and Output Stage
- Add BTF3050TEATMA1 output drivers configured to handle PWM switching for 3 A to 10 A load control.
- Connect the 24 V input directly to the output load path, ensuring proper current paths and protection elements are in place.
- Integrate compact screw-terminal style connectors for load/output connections.
-
User Inputs and Sensing Integration
- Add three momentary switch inputs via JST connectors. Define their connections to GPIOs on the ESP32 with debouncing elements if necessary.
- Add an input for a presence sensor and properly signal condition it for digital or analog reading by the ESP32.
- Place a TO-92 temperature sensor near the BTF3050TEATMA1 output drivers for local temperature monitoring.
-
**Display and Additional Analog Inputs
- Set up an I2C connection via a Qwiic connector for interfacing with an OLED display.
- Integrate additional analog inputs on JST connectors. Include necessary signal conditioning networks (e.g., filters, attenuation) before routing them to the ESP32 ADC.
-
Schematic and Layout Verification
- Validate the revised schematic connections and ensure that the power, control signals, and sensor routes meet design criteria.
- Update the PCB layout ensuring that the compact design plan accounts for the 24 V load, proper spacing for high-current tracks, and placement of sensors near their respective stages.
#Success criteria
- The schematic accurately reflects a 24 V PWM load controller with integrated BTF3050TEATMA1 drivers and all required external interfaces.
- The design includes properly conditioned sensor inputs and an OLED I2C connection, along with clearly defined load connectors and momentary switch inputs.
- Compact board design with correct placement for high-current routing and sensor integration, ensuring manufacturability and operational reliability.
36 days
0:50
Thinking deeply about your request.
Working on your request.
Summarizing requirements steps.
You want to proceed with the plan for the compact 24 V ESP32 PWM load controller.
- The plan is ready to execute.
- Click Start on the plan bar to begin the work.
- If you want, I can still revise it before execution, for example:
- number of PWM outputs
- number of analog inputs
- exact JST/screw connector preferences
Plan
- Modify the existing ESP32-WROOM-32E reference design into a compact 24 V DC PWM load controller. Use the ESP32 to control high-current DC loads (3 A to 10 A) with BTF3050TEATMA1 output drivers while integrating multiple external interfaces including screw-terminal style load connectors, JST-connected momentary switches, I2C OLED over Qwiic, a presence sensor input, a nearby TO-92 temperature sensor, and additional conditioned analog inputs via JST connectors.
#Implementation plan
-
System Functional Review & Architecture Update
- Update the project description to include the 24 V load control requirement and high-current handling for DC loads (3 A to 10 A).
- Revise the power supply stage to ensure 24 V is routed properly for load driving while protecting the ESP32’s 3.3 V supply.
-
Load Control and Output Stage
- Add BTF3050TEATMA1 output drivers configured to handle PWM switching for 3 A to 10 A load control.
- Connect the 24 V input directly to the output load path, ensuring proper current paths and protection elements are in place.
- Integrate compact screw-terminal style connectors for load/output connections.
-
User Inputs and Sensing Integration
- Add three momentary switch inputs via JST connectors. Define their connections to GPIOs on the ESP32 with debouncing elements if necessary.
- Add an input for a presence sensor and properly signal condition it for digital or analog reading by the ESP32.
- Place a TO-92 temperature sensor near the BTF3050TEATMA1 output drivers for local temperature monitoring.
-
**Display and Additional Analog Inputs
- Set up an I2C connection via a Qwiic connector for interfacing with an OLED display.
- Integrate additional analog inputs on JST connectors. Include necessary signal conditioning networks (e.g., filters, attenuation) before routing them to the ESP32 ADC.
-
Schematic and Layout Verification
- Validate the revised schematic connections and ensure that the power, control signals, and sensor routes meet design criteria.
- Update the PCB layout ensuring that the compact design plan accounts for the 24 V load, proper spacing for high-current tracks, and placement of sensors near their respective stages.
#Success criteria
- The schematic accurately reflects a 24 V PWM load controller with integrated BTF3050TEATMA1 drivers and all required external interfaces.
- The design includes properly conditioned sensor inputs and an OLED I2C connection, along with clearly defined load connectors and momentary switch inputs.
- Compact board design with correct placement for high-current routing and sensor integration, ensuring manufacturability and operational reliability.
Add input protection
Specify output count
Define analog channels
Review current issues
36 days
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