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README: fix SERIAL1 header pin number #11

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2 changes: 1 addition & 1 deletion README.md
Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ It allows you to connect to the internet, send and receive SMS messages, and get
## 👀 Instructions
1. Insert your Arduino 4G module to the [Arduino Portenta Mid Carrier](https://store.arduino.cc/collections/portenta-family/products/portenta-mid-carrier)
2. Insert a valid SIM card either in the **PCIE_SIM** connector on the Portenta Mid Carrier
3. Connect the 6 **SERIAL1** header pins to their corresponding pins on the **PCIE_BREAKOUT** header using jumpers
3. Connect the 5 **SERIAL1** header pins to their corresponding pins on the **PCIE_BREAKOUT** header using jumpers
![](https://raw.githubusercontent.com/arduino-libraries/Arduino_Cellular/main/extras/connection_img/header.jpg?token=GHSAT0AAAAAACNPRJPUBHNVP3J3KMRPUULUZQVDLKQ)
4. Connect the **3V3 PCIE** pin to the **3V3 Buck**
![](https://raw.githubusercontent.com/arduino-libraries/Arduino_Cellular/main/extras/connection_img/buck.jpg?token=GHSAT0AAAAAACNPRJPUBUCALG2FUCDZ7AVCZQVDLJA)
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