# mangOH Green

**URL:** https://mangoh.discourse.group/c/mangoh-green/6.md

[Latest](https://mangoh.discourse.group/latest.md) · [Categories](https://mangoh.discourse.group/categories.md)

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## [About the mangOH Green category](https://mangoh.discourse.group/t/about-the-mangoh-green-category/16)

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**Author:** [@thibs](https://mangoh.discourse.group/u/thibs)\
**Replies:** 0

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https://mangoh.io/mangoh-green

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## [Error while loading shared libraries: Internal Error](https://mangoh.discourse.group/t/error-while-loading-shared-libraries-internal-error/10286)

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**Author:** [@aruna](https://mangoh.discourse.group/u/aruna)\
**Replies:** 29\
**Last updated:** [May 24, 2023, 9:41am UTC](https://mangoh.discourse.group/t/error-while-loading-shared-libraries-internal-error/10286 "2023-05-24T09:41:24Z")

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Hi All, I am using MangOH green with WP76 module, I have a application which use shared library files to fetch the data from client devices. The shared library file is compiled for arm7 architecture. Able to compile the…

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## [MangoH and Arduino](https://mangoh.discourse.group/t/mangoh-and-arduino/557)

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**Author:** [@Thong](https://mangoh.discourse.group/u/Thong)\
**Replies:** 6\
**Last updated:** [January 6, 2023, 7:47am UTC](https://mangoh.discourse.group/t/mangoh-and-arduino/557 "2023-01-06T07:47:07Z")

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Hi all I'm following tutorial https://github.com/mangOH/ArduinoBridge to communicate MangoH with Arduino. In step to update:AV\_URL, AV\_PASSWORD define AV\_URL "" // replace with url of your airvantage accou…

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## [Problem with Cfg\_gateway.sh](https://mangoh.discourse.group/t/problem-with-cfg-gateway-sh/10133)

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**Author:** [@antoniobuono](https://mangoh.discourse.group/u/antoniobuono)\
**Replies:** 21\
**Last updated:** [October 7, 2022, 10:00am UTC](https://mangoh.discourse.group/t/problem-with-cfg-gateway-sh/10133 "2022-10-07T10:00:00Z")

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Good Morning, i don’t know why, after running for some time, I get the following error " Mountinf of realy interface ‘rment\_data0’ faile" when I launch the cfg\_gateway.sh script. How can I solve?

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## [How to use Ethernet IOT Card on MangOH green?](https://mangoh.discourse.group/t/how-to-use-ethernet-iot-card-on-mangoh-green/10076)

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**Author:** [@antoniobuono](https://mangoh.discourse.group/u/antoniobuono)\
**Replies:** 16\
**Last updated:** [August 30, 2022, 12:32pm UTC](https://mangoh.discourse.group/t/how-to-use-ethernet-iot-card-on-mangoh-green/10076 "2022-08-30T12:32:50Z")

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Hi all, I’m using the mangoh green with ethernet IOT card. In my project the ethernet card must be connected to slot 1. Are there any configurations to be made such as enabling the pins etc? Or just follow the script use…

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## [GPS related issue](https://mangoh.discourse.group/t/gps-related-issue/9722)

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**Author:** [@pallavibathala](https://mangoh.discourse.group/u/pallavibathala)\
**Replies:** 43\
**Last updated:** [August 17, 2022, 7:39am UTC](https://mangoh.discourse.group/t/gps-related-issue/9722 "2022-08-17T07:39:50Z")

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Hi Team, We have created an application which will fetch GPS co-ordinates and continuously publish the location of the device using MQTT publish. The issue is we are not able to get location details, see below snippet …

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## [Unable to connect to ssh root@192.168.2.2 after install cfg\_gateway.sh](https://mangoh.discourse.group/t/unable-to-connect-to-ssh-root-192-168-2-2-after-install-cfg-gateway-sh/10073)

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**Author:** [@antoniobuono](https://mangoh.discourse.group/u/antoniobuono)\
**Replies:** 7\
**Last updated:** [August 2, 2022, 10:16am UTC](https://mangoh.discourse.group/t/unable-to-connect-to-ssh-root-192-168-2-2-after-install-cfg-gateway-sh/10073 "2022-08-02T10:16:12Z")

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Hello everyone, after installing cfg\_gateway.sh as in the guide Setting up MangOH Red as Router to Cellular Gateway, I am no longer able to enter the card using the ssh root command. I tried to follow the swiflash guid…

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## [Connect mangoh to GCE cloud server](https://mangoh.discourse.group/t/connect-mangoh-to-gce-cloud-server/2995)

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**Author:** [@LindaJackson](https://mangoh.discourse.group/u/LindaJackson)\
**Replies:** 1\
**Last updated:** [October 22, 2019, 4:22pm UTC](https://mangoh.discourse.group/t/connect-mangoh-to-gce-cloud-server/2995 "2019-10-22T16:22:14Z")

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I want to connect mangoh to the GCE hosting server. Although, I have not opted for the conventional GCE hosting server. Instead, I decided to go with the managed Google cloud web hosting server which is managed by cloudw…

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## [Troubles working with EXTERNAL\_SLOT\_2 on WPx5xx](https://mangoh.discourse.group/t/troubles-working-with-external-slot-2-on-wpx5xx/1523)

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**Author:** [@funfunfun](https://mangoh.discourse.group/u/funfunfun)\
**Replies:** 18\
**Last updated:** [January 5, 2022, 11:20am UTC](https://mangoh.discourse.group/t/troubles-working-with-external-slot-2-on-wpx5xx/1523 "2022-01-05T11:20:03Z")

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We have the same problem with WP8548 (on MangoH Green, primary CF3) and WP7502 (on our custom board). Using ‘cm sim select’ command we can’t switch to EXTERNAL\_SLOT\_2. E.g. login as: root Linux swi-mdm9x15 3.14.29ltsi-…

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## [Talon CAB bus IoT Mirage pinout?](https://mangoh.discourse.group/t/talon-cab-bus-iot-mirage-pinout/9708)

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**Author:** [@gavinoimparato1](https://mangoh.discourse.group/u/gavinoimparato1)\
**Replies:** 0\
**Last updated:** [October 12, 2021, 10:25am UTC](https://mangoh.discourse.group/t/talon-cab-bus-iot-mirage-pinout/9708 "2021-10-12T10:25:14Z")

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Hi all! For some months I have been developing a project that involves the use of the CAN IoT Talon Mirage module. I want to deepen this project, but I have a problem: on the site it is not a pinout, a difference instea…

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## [How to go to deep sleep and wake up](https://mangoh.discourse.group/t/how-to-go-to-deep-sleep-and-wake-up/9630)

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**Author:** [@yoheifujimitsu](https://mangoh.discourse.group/u/yoheifujimitsu)\
**Replies:** 7\
**Last updated:** [September 16, 2021, 8:28am UTC](https://mangoh.discourse.group/t/how-to-go-to-deep-sleep-and-wake-up/9630 "2021-09-16T08:28:16Z")

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Hi. I’m developing an application with WP7605. I am trying to to to deep sleep mode and wake up when data packet recieved. Please let me know how to wake up using legato API.

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## [Help with Audio on MangOH Green](https://mangoh.discourse.group/t/help-with-audio-on-mangoh-green/9509)

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**Author:** [@mitchneeld](https://mangoh.discourse.group/u/mitchneeld)\
**Replies:** 1\
**Last updated:** [July 22, 2021, 1:46pm UTC](https://mangoh.discourse.group/t/help-with-audio-on-mangoh-green/9509 "2021-07-22T13:46:15Z")

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I have a linux application that uses ALSA for audio and am trying to get it to work on the MangOH Green. Any help is appreciated! I found one post from 2018 with a similar issue and nothing mentioned worked. The issue…

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## [Audio Playback with mangOH Green WP76xx](https://mangoh.discourse.group/t/audio-playback-with-mangoh-green-wp76xx/1362)

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**Author:** [@csicilia.mrdcompany](https://mangoh.discourse.group/u/csicilia.mrdcompany)\
**Replies:** 6\
**Last updated:** [June 16, 2021, 3:04pm UTC](https://mangoh.discourse.group/t/audio-playback-with-mangoh-green-wp76xx/1362 "2021-06-16T15:04:34Z")

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Dear all, We build an app, you will find source and compiled version for WP67xx in attachment audioPlaybackRec.zip We tested this app for Mangoh Red and seems work, but on Mango Green it not work, when we start it we s…

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## [Eth address 192.168.0.1](https://mangoh.discourse.group/t/eth-address-192-168-0-1/2962)

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**Author:** [@Miroslaw](https://mangoh.discourse.group/u/Miroslaw)\
**Replies:** 3\
**Last updated:** [June 12, 2021, 11:54pm UTC](https://mangoh.discourse.group/t/eth-address-192-168-0-1/2962 "2021-06-12T23:54:16Z")

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Hi - I wanted to use mangoh green with the plain ETH only (for a moment). My local network is 192.168.0.0/24, with router at 192.168.0.1. I set up the ETH to static address 192.168.0.50. I set it frist I can ssh to it…

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## [How to Get IMEI Info](https://mangoh.discourse.group/t/how-to-get-imei-info/8897)

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**Author:** [@yoheifujimitsu](https://mangoh.discourse.group/u/yoheifujimitsu)\
**Replies:** 3\
**Last updated:** [April 17, 2021, 11:13am UTC](https://mangoh.discourse.group/t/how-to-get-imei-info/8897 "2021-04-17T11:13:36Z")

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Hi. I would like to get IMEI number. So, I write bellow code and try to compile. #include “legato.h” #include “le\_info\_common.h” char buffer\[100\]; size\_t size=100; memset(buffer, 0x00, sizeof(buffer)); le\_info\_G…

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## [How to try GPIO control](https://mangoh.discourse.group/t/how-to-try-gpio-control/7753)

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**Author:** [@yoheifujimitsu](https://mangoh.discourse.group/u/yoheifujimitsu)\
**Replies:** 4\
**Last updated:** [April 6, 2021, 1:40pm UTC](https://mangoh.discourse.group/t/how-to-try-gpio-control/7753 "2021-04-06T13:40:01Z")

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I would like to control GPIO25 with WP76xx module. I am trying sample code as below URL . But I can’t confirm start of the program. (I can’t find this log message “===============CF3 gpio application has started”)log…

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## [mangOH board: Legato GNSS and Position](https://mangoh.discourse.group/t/mangoh-board-legato-gnss-and-position/227)

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**Author:** [@hui\_s](https://mangoh.discourse.group/u/hui_s)\
**Replies:** 9\
**Last updated:** [March 30, 2021, 7:53am UTC](https://mangoh.discourse.group/t/mangoh-board-legato-gnss-and-position/227 "2021-03-30T07:53:34Z")

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Hi- I am following demo app textLoc to explore GPS locationing. I realized that if I added le\_gnss\_Start() to start GNSS service at beginning for le\_gnss\_GetLocation(), then le\_posCtrl\_Request() in the original demo…

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## [Cannot find device Can0](https://mangoh.discourse.group/t/cannot-find-device-can0/6280)

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**Author:** [@lucanazzaro](https://mangoh.discourse.group/u/lucanazzaro)\
**Replies:** 101\
**Last updated:** [March 22, 2021, 3:48pm UTC](https://mangoh.discourse.group/t/cannot-find-device-can0/6280 "2021-03-22T15:48:16Z")

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Hi everyone, I have a mango green with wp7607 and I use the Talon CAN Bus IoT extender for Sierra mangOH IoT. Through leaf I imported into the profile the SDK (swi-wp76\_4.0.0) for WP76 which provides Relase13 and Legato …

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## [How to define GPIO port](https://mangoh.discourse.group/t/how-to-define-gpio-port/6378)

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**Author:** [@takashishiina](https://mangoh.discourse.group/u/takashishiina)\
**Replies:** 2\
**Last updated:** [March 18, 2021, 8:05am UTC](https://mangoh.discourse.group/t/how-to-define-gpio-port/6378 "2021-03-18T08:05:57Z")

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Our customer would like to control GPIO with WP76xx module. We found GPIO sample code as below URL. But we do not understand how to define WP76xx module GPIO in this code. Could you please let us know which code do def…

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## [Need Information On UART](https://mangoh.discourse.group/t/need-information-on-uart/50)

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**Author:** [@cslee](https://mangoh.discourse.group/u/cslee)\
**Replies:** 7\
**Last updated:** [March 15, 2021, 11:02am UTC](https://mangoh.discourse.group/t/need-information-on-uart/50 "2021-03-15T11:02:45Z")

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Hello, I had setup Legato (in linux), managed to connect to AirVantage and executed few of the sample applications. Received 3 breakout-board few day ago and executed the GPIOCF3Demo and manage to capture some signal o…

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## [Error: implicit declaration of function ‘i2c\_smbus\_write\_byte’ \[-Werror=implicit-function-declaration\]](https://mangoh.discourse.group/t/error-implicit-declaration-of-function-i2c-smbus-write-byte-werror-implicit-function-declaration/2315)

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**Author:** [@AkshayKulkarni](https://mangoh.discourse.group/u/AkshayKulkarni)\
**Replies:** 4\
**Last updated:** [March 9, 2021, 7:36am UTC](https://mangoh.discourse.group/t/error-implicit-declaration-of-function-i2c-smbus-write-byte-werror-implicit-function-declaration/2315 "2021-03-09T07:36:52Z")

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Hi there , I was trying to write an application to read and write data to i2c device .previously i had used #include \<linux/i2c-dev-user.h\> but since i2c-utils was removed from the root filesystem and toolchain for the …

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## [MQTT SSL is not working](https://mangoh.discourse.group/t/mqtt-ssl-is-not-working/5822)

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**Author:** [@aruna](https://mangoh.discourse.group/u/aruna)\
**Replies:** 8\
**Last updated:** [February 24, 2021, 10:42am UTC](https://mangoh.discourse.group/t/mqtt-ssl-is-not-working/5822 "2021-02-24T10:42:42Z")

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Hi All, I am new to legato, Facing issue with MQTT SSL Connection, As soon as trying to connect MQTT over ssl app is getting crash (Reporting segment fault). Please suggest a solution for this issue Module Name : WP760…

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## [Compatible Micro SD](https://mangoh.discourse.group/t/compatible-micro-sd/6123)

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**Author:** [@lucanazzaro](https://mangoh.discourse.group/u/lucanazzaro)\
**Replies:** 0\
**Last updated:** [February 8, 2021, 11:43am UTC](https://mangoh.discourse.group/t/compatible-micro-sd/6123 "2021-02-08T11:43:24Z")

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Hi I would like to know the list of uSDs supported by mangOH Green. In particular I would like to know what is the maximum size of the uSD it supports. I read on the other topics that there was a problem on the uSD that…

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## [Mangoh Green - Raspberry pi](https://mangoh.discourse.group/t/mangoh-green-raspberry-pi/5917)

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**Author:** [@janslazcano1](https://mangoh.discourse.group/u/janslazcano1)\
**Replies:** 5\
**Last updated:** [December 30, 2020, 10:37am UTC](https://mangoh.discourse.group/t/mangoh-green-raspberry-pi/5917 "2020-12-30T10:37:21Z")

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Estimados, Soy muy nuevo en programación de Sierra Wireless, tengo la tarjeta de desarrollo Mangoh Green pero tengo dudas en la programación, tengo un proyecto interesante para implementar en cervecería artesanal y me gu…

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## ['/dev/nmea' is not a device file](https://mangoh.discourse.group/t/dev-nmea-is-not-a-device-file/2327)

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**Author:** [@AkshayKulkarni](https://mangoh.discourse.group/u/AkshayKulkarni)\
**Replies:** 6\
**Last updated:** [December 26, 2020, 10:31am UTC](https://mangoh.discourse.group/t/dev-nmea-is-not-a-device-file/2327 "2020-12-26T10:31:25Z")

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Hi there , I had written a legato application which would read gps data from /dev/nmea the code was working fine in wp7502 but the same code when tried with wp7607 gives out following errors –\> supervisor\[658\]/supervis…

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## [Ultra low power mode in GPS example](https://mangoh.discourse.group/t/ultra-low-power-mode-in-gps-example/1377)

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**Author:** [@rzapata](https://mangoh.discourse.group/u/rzapata)\
**Replies:** 1\
**Last updated:** [December 2, 2020, 12:18pm UTC](https://mangoh.discourse.group/t/ultra-low-power-mode-in-gps-example/1377 "2020-12-02T12:18:14Z")

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Hello everyone, I’m a new developer, I’ve used mangOH for some IoT applications. I’m struggling with the following example that sends current location get from GPS to a cellphone via sms. sample link: https://github.c…

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## [Not work UART with IoT slot#0 on mangOH green](https://mangoh.discourse.group/t/not-work-uart-with-iot-slot-0-on-mangoh-green/5725)

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**Author:** [@takashishiina](https://mangoh.discourse.group/u/takashishiina)\
**Replies:** 7\
**Last updated:** [November 26, 2020, 2:42pm UTC](https://mangoh.discourse.group/t/not-work-uart-with-iot-slot-0-on-mangoh-green/5725 "2020-11-26T14:42:11Z")

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I bought RENFELL UART RS232-4W IoT card (0107-03-R2.1) and inserted it to IoT slot#0 on mangOH green. I confirmed that WP76 module can detect this card by “dmesg | tail –n 22” command. But UART#1 did not work on IoT slo…

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## [How do I enable microSD card at power up](https://mangoh.discourse.group/t/how-do-i-enable-microsd-card-at-power-up/1456)

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**Author:** [@AndrewMawdsley](https://mangoh.discourse.group/u/AndrewMawdsley)\
**Replies:** 3\
**Last updated:** [November 19, 2020, 6:12pm UTC](https://mangoh.discourse.group/t/how-do-i-enable-microsd-card-at-power-up/1456 "2020-11-19T18:12:12Z")

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I have a WP85 in the MangOH Green running 16.10.4 firmware. If the microSD card is inserted when the mangOH powers up, it allows me to manually mount the SD card… all works fine. I can unmount and unplug, then replug t…

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## [WP7607-1 IPC using pipes](https://mangoh.discourse.group/t/wp7607-1-ipc-using-pipes/5449)

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**Author:** [@tadera](https://mangoh.discourse.group/u/tadera)\
**Replies:** 21\
**Last updated:** [November 13, 2020, 8:37pm UTC](https://mangoh.discourse.group/t/wp7607-1-ipc-using-pipes/5449 "2020-11-13T20:37:13Z")

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Hi everyone, I have the following idea but don’t know how to implement it. One C script sends a string to another C script using pipes. After that, the latter script forwards that string to Putty via UART1. These are …

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## [UART communication issue](https://mangoh.discourse.group/t/uart-communication-issue/83)

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**Author:** [@niladridm](https://mangoh.discourse.group/u/niladridm)\
**Replies:** 33\
**Last updated:** [October 15, 2020, 2:35pm UTC](https://mangoh.discourse.group/t/uart-communication-issue/83 "2020-10-15T14:35:08Z")

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Hi I am trying to use MangOH Serial console port to communicate with my serial device. I have fired AT!MAPUART=17,1 to disabled Linux console and enabled application console . In my application I am writing data to the s…

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