Schematic for ESP32-WROOM-32U Module: This project is a reference...

Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
natarius
Ground
A common return path for electric current. Commonly known as ground.
jharwinbarrozo
20.5M
Net Portal
A net identifier used to create connectivity to other Net Portal with the same designator. #portal
jharwinbarrozo
43.0M
Power Net Portal
Power net portal is a special schematic object used to define a power or ground net. Power ports allow you to conveniently indicate a power net at any location in the design. Power nets of the same designator automatically connect throughout your design #portal #power
jharwinbarrozo
11.4M
Generic Resistor
A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Capacitor
A generic fixed capacitor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Inductor
A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
jharwinbarrozo
14.2k
875105359001
10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
jharwinbarrozo
1.2M
CTL1206FYW1T
Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
jharwinbarrozo
1.1M
1070TR
Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlink
jharwinbarrozo
700.5k

GPIO36

Capacitance

10u F

ESP_RX

+3V3

GPIO33

GPIO18

ESP1

Manufacturer Part Number

ESP32-WROOM-32U

Resistance

10k Ω

GPIO32

C11

Capacitance

0.1u F

+3V3

GPIO15

GPIO14

Capacitance

10u F

GPIO21

PWR

GPIO34

GPIO25

SD1/IO8

+5V

CMD/IO11

GPIO27

ESP_IO0

GPIO26

GPIO25

GPIO13

ESP_IO0

GPIO22

Capacitance

0.1u F

Capacitance

0.1u F

GPIO16

Resistance

1k Ω

GPIO12

RST

CLK/IO6

+5V

GPIO5

SD3/IO10

GPIO13

GPIO17

GPIO12

+3V3

GPIO25

GPIO35

GPIO33

Capacitance

10u F

GPIO12

C10

Capacitance

0.1u F

+3V3

GPIO33

GPIO4

GPIO36

GPIO32

ESP_EN

GPIO2

GPIO36

GPIO26

GPIO13

GPIO34

GND

GPIO39

SD2/IO9

GPIO26

GPIO39

GPIO19

+3V3

GPIO39

GPIO35

BOOT

GPIO32

GPIO14

ESP_EN

GPIO14

ESP_TX

ESP_EN

GPIO27

GPIO23

ESP_IO0

GPIO27

RST

ESP_EN

SD0/IO7

+3V3

GPIO35

+3V3

Distributor	Qty 1
	Digi-Key	$1.06–$2.47
	LCSC	$1.39–$1.71
	Mouser	$2.37

@copilot How would I add temperature sensors and SSRs to this? I want to convert...

bruceapplesauce

@copilot How would I add temperature sensors and SSRs to this? I want to convert this into a PID controller

10mo

copilot

To convert your existing ESP32-WROOM-32U based design into a PID (Proportional-Integral-Derivative) controller with temperature sensors and Solid State Relays (SSRs), you'll need to add components to measure temperature and control power devices, respectively. Here’s how to proceed, assuming common implementations:

Temperature Sensors:

You can use digital temperature sensors like the DS18B20 for accuracy and ease of interface, or analog ones like the LM35 if you prefer. The choice depends on your temperature range, accuracy needs, and interface preference.

For DS18B20 (OneWire Digital Temperature Sensor):

Interface: Utilize a GPIO for the OneWire communication.
- Let’s use GPIO17: Connect GPIO17:(P1) to DS18B20:(DQ). (Assuming DS18B20 pin DQ for data)
- You'll also need to connect the sensor’s GND and VDD pins to your board's GND and 3.3V respectively.
- A pull-up resistor (e.g., 4.7kΩ) is required between VDD and DQ on the sensor.

For LM35 (Analog Temperature Sensor):

Interface: Connect its output to one of the ESP32’s ADC capable GPIOs.
- Example: Connect LM35:(Vout) to GPIO34:(P1). (assuming LM35 Vout pin for output)
- Connect LM35 GND to your board’s GND and Vcc to a 3.3V source.

Solid State Relays (SSRs):

SSRs can be controlled directly by GPIOs given their low current requirements for the input control signal.

Connections:
- Let's assume you're switching AC loads and using GPIO5 for control: Connect GPIO5:(P1) to SSR:(+IN).
- Connect the SSR’s GND to your board’s GND.
- Depending on your SSR, you might need a resistor in series with the GPIO pin for current limiting. Check your SSR's datasheet for input current requirements.

PID Control Logic:

The PID control logic would be implemented in the firmware running on the ESP32. You need to measure the temperature from the sensors, calculate the error from the target temperature, and then adjust the SSR control (duty cycle or on/off) based on your PID algorithm's output.

Firmware Implementation: Implement the PID control algorithm in the ESP32 firmware. Libraries exist for both temperature reading (e.g., OneWire for DS18B20, simple ADC read for LM35) and PID control (e.g., the Arduino PID library can be adapted for ESP32).

Summary and Notes:

Choose your temperature sensor based on your measurement requirements. DS18B20 for digital interface, LM35 for analog.

Connect the temperature sensor and SSR to the ESP32 as suggested. Assure all components are properly powered.

Implement your PID control logic in software, utilizing the temperature readings as input and SSR activation as output.

Pay attention to electrical isolation, especially when controlling high-power loads with SSRs. SSRs are great as they already provide optical isolation.

This should give you a good starting point for adding temperature control capabilities to your ESP32 project.

10mo

How would I add temperature sensors and SSRs to this? I want to convert this int...

bruceapplesauce

How would I add temperature sensors and SSRs to this? I want to convert this into a PID controller

10mo

Someone is typing...

	Designator	Ruleset
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	-	Override rule for ＊`REF`＊
	-	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	-	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	-	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	-	Override rule for ＊`REF`＊

	Designators	Net
	SCS/CMD, CMD/IO11	Net 12
	SDI/SD1, SD1/IO8	Net 40
	IO18, GPIO18	Net 28
	IO27, GPIO27	Net 20
	IO34, GPIO34	Net 7
	IO4, GPIO4	Net 35
	GPIO5, IO5	Net 31
	IO2, GPIO2	Net 3
	IO0, GPIO0	Net 29
	GPIO13, IO13	Net 30
	SCK/CLK, CLK/IO6	Net 24
	GPIO25, IO25	Net 18
	SD0/IO7, SDO/SD0	Net 36
	IO15, GPIO15	Net 34
	GPIO16, IO16	Net 32
	TXD0, TX	Net 13
	GPIO23, IO23	Net 27
	GPIO35, IO35	Net 9
	GPIO39, SENSOR_VN	Net 6
	RXD0, RX	Net 17
	SD2/IO9, SHD/SD2	Net 41
	IO32, GPIO32	Net 10
	SENSOR_VP, GPIO36	Net 19
	+5V, K	Net 25
	IO19, GPIO19	Net 22
	IO26, GPIO26	Net 4
	RST, EN	Net 37
	SD3/IO10, SWP/SD3	Net 42
	IO12, GPIO12	Net 26
	GPIO22, IO22	Net 8
	IO14, GPIO14	Net 21
	P1, +3V3	Net 44
	GPIO21, IO21	Net 11
	GPIO33, IO33	Net 23
	GPIO17, IO17	Net 33

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bruceapplesauce / ESP32-WROOM-32U Module

Schematic

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