# Sim800C no connection

**URL:** <https://discourse.nodered.org/t/sim800c-no-connection/84955>\
**Category:** General\
**Created:** [26 January 2024 22:58 UTC](https://discourse.nodered.org/t/sim800c-no-connection/84955 "2024-01-26T22:58:44Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Shwowak](https://avatars.discourse-cdn.com/v4/letter/s/7bcc69/32.png) [@Shwowak](https://discourse.nodered.org/u/Shwowak)\
**Post date:** [26 January 2024 22:58 UTC](https://discourse.nodered.org/t/sim800c-no-connection/84955/1 "2024-01-26T22:58:44Z")

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Hey Guys i have a Sim800C and i have no connection. Nodered  
I connected the Sim800c with a usb-FTDI\_FT232R\_USB\_UARTConnector and then connected it to the Raspberrypi. This is also recognized

```auto
nodered: 
    image: nodered/node-red
    container_name: nodered
    privileged: true
    restart: unless-stopped
    ports: 
      - "1880:1880"
      - "53160:53160/udp"
      - "42416:42416" #Alexa
     # - "20211:20211" # Pi Alert
    volumes:
      - /home/pi/smarthome/nodered:/data
    devices:
      - /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_A50285BI-if00-port0:/dev/ttyUSB0
    networks:
      mynet:
       ipv4_address: 172.20.0.2

```

 ![Sim800C](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/3/4/340e944d26c273e1970afafff2a10d706723d2b2.png)

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<div class="post-metadata">

**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [26 January 2024 23:09 UTC](https://discourse.nodered.org/t/sim800c-no-connection/84955/2 "2024-01-26T23:09:29Z")

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Don't use docker or any other container platform - it causes nothing but problems. 🤷‍♂️  
most here use Node RED natively.

Sorry, as blunt as it sounds - all these problems are due to overly complex, container platforms

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<div class="post-metadata">

**Author:** ![Shwowak](https://avatars.discourse-cdn.com/v4/letter/s/7bcc69/32.png) [@Shwowak](https://discourse.nodered.org/u/Shwowak)\
**Post date:** [3 February 2024 15:15 UTC](https://discourse.nodered.org/t/sim800c-no-connection/84955/3 "2024-02-03T15:15:30Z")

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Ich habe es direkt an Raspberry angeschlossen und auch ohne Knoten getestet. Es funktioniert nicht, es leuchtet nur die blaue Leuchte dauerhaft

I just used a raspberry shot and also tested the buttons. If it doesn't function, it's light now that the blue light lasts

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [3 April 2024 15:16 UTC](https://discourse.nodered.org/t/sim800c-no-connection/84955/4 "2024-04-03T15:16:04Z")

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