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STD ESP32 control LED12V and monitor temperatures (more I/O)
License: Public Domain
Mode: Editors' pick
- 4
Update time：
2022-10-27 07:18:44
Creation time：
2020-05-31 15:58:55
Description
I will have this PCB working with home assistant.(you can make it running using other soft: Nodered/ Arduino IDE/ micropython...what you wish)
I have made some modifications to get 2 more temperatures readings from 18B20 waterproof sensors + DHT22 (temperature/humidity)
This PCB is working with home assistant to get temperatures, humidity, state of relays and activate relays to turn on 12V leds in my case through WIFI connection.
In summary:
Home assistant is running in a raspberry pi4B, connected to my Wifi network.
This PCB is connected to my wifi network using the ESP32 on this board. (ESP32 should have in theory a greater wifi range compared to the standard ESP8266)
I can access home assistant using my phone connected to the same wifi network to get informations (relay states/ temperatures/ humidity) and send actions (turn on off the 12V bulbs)
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | DC-DC-STEP-DOWN-LM2596 | 1 | DC-DC-STEP-DOWN-LM2596 | 1 |
| 2 | HSMG-C150 | 5V-OUT,12V,CDE_LAMP3,CDE_LAMP4,LAMPOSTS,SHED | LED1206-R-RD | 6 |
| 3 | TERMINAL_BLOCK_1X2_P5.08 | 5V_OUT,SW_LED2,SW_LED3,SW_LED4,SW_SHED,CNLSHED,LAMP3,LAMP4,LAMPOST1,LAMPOST2 | TERMINAL_BLOCK_1X2_P5.08MM | 10 |
| 4 | 4700uF | C1 | CAP-TH_BD16.0-P7.50-D1.2-FD | 1 |
| 5 | TERMINAL_BLOCK_1x3_P5.08 | DS18B20_1,DS18B20_2 | TERMINAL_BLOCK_1X3_P5.08MM | 2 |
| 6 | 20mm_PCB_Fuse_Holder | F1 | 20X5MM_FUSE_HOLDER_22MM_CENTRES | 1 |
| 7 | PHOENIX | J1 | PHOENIX PKG | 1 |
| 8 | 1.2KΩ | R4 | 1206 | 1 |
| 9 | 4.7K | R5 | R1206 | 1 |
| 10 | 300Ω | R7 | 1206 | 1 |
| 11 | ESP WROOM 32 | U4 | ESP32 | 1 |
| 12 | 100nF | C2,C4,C5,C7 | 1206 | 4 |
| 13 | 10K | R9,R10,R11,R12,R13,R14,R17,R18 | R1206 | 8 |
| 14 | KKTL-SN74HC14D | U8 | KKTL-SN74HC14D | 1 |
| 15 | 200Ω | R1,R2,R3,R6 | 1206 | 4 |
| 16 | AQZ102 | U1,U2,U3,U5 | RELAY-TH_AQZ102 | 4 |
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