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Update pinouts diagram for ESP32

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ESP32 pinout added 
added note on voltage level between esp32 and Victron devices
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Jiří Bětuňák 2024-05-05 23:47:52 +02:00 committed by GitHub
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README.md
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@ -53,12 +53,14 @@ If you are unsure about to pin order please measure the voltage between GND and
### JST-PH jack
| Pin | Purpose | ESP pin |
| :-----: | :----------- | :------------- |
| **1** | **GND** | GND |
| 2 | RX | |
| **3** | **TX** | D7 (RX) |
| 4 | 5V | |
| Pin | Purpose | ESP8266 pin | ESP32 pin |
| :-----: | :----------- | :------------- |:------------- |
| **1** | **GND** | **GND** |**GND** |
| 2 | RX | | |
| **3** | **TX** | D7 (**RX**) | GPIO16 (**RX**) |
| 4 | 5V | | |
note: _Level shifter (5V<->3.3V)between esp32 and mppt is not necessary_ (tested on esp32 nodemcu v1 and MPPT 75/115 , MPPT 150/35 and smartshunt 500A)
<a href="images/circuit.jpg" target="_blank">
<img src="images/circuit_thumbnail.jpg" width="50%">