HummingBoard Pulse & i.MX8M Mini SOM Quick Start Guide


The following quick start guide provides background information about the HummingBoard Pulse.

The guide will give a technical overview about the product and by the end of it you should be able to boot an operating system and begin testing your application.

Revision and Notes

Hardware Setup

Product specifications


HummingBoard Pulse


HummingBoard Pulse

SOM Model

NXP i.MX8M Dual / Quad core Arm Cortex A53 up to 1.5GHz (with Arm M4 GPP)

NXP i.MX8M Mini Single to Quad core Arm Cortex A53 up to 1.8GHz (with Arm M4 GPP)

Memory & Storage

Up to 4GB LPDDR4


2 x RJ45


2 x USB 3.0 *
Mini PCIe
SIM card slot


HDMI 2.0 out **
2 x MIPI-CSI ***
Digital audio (Riser interface FPC connector)

Onboard audio codec


1 x Reset button
1 x Configurable push button
MikroBus click interface
3 x LED indicators

OS Support



Ambient temp.: 0°C to 70°C
Enclosed ambient temp.: 0°C to 40°C
CPU max die: 105°C

Ambient temp.: -40°C to 85°C
Enclosed Ambient temp.: -25°C to 65°C
CPU max die: 105°C

Humidity (non-condensing): 10% – 90%


Board: 102mm x 69mm
Enclosed: 141.5 x 78 x 30mm


7V – 28V wide range
PoE sink support


Optional extruded aluminum (IP32) enclosure


Supported with i.MX8M-MINI SOM. For more detailed information about our SOM-i.MX8M series please visit this user manual : i.MX8M Mini SOM Hardware User Manual .

Please note

(*) Only USB 2.0 supported with the i.MX8M Mini SoC.
(**) Only supported with the i.MX8M SoC.
(***) Only 1 x MIPI-CSI supported with the i.MX8M Mini SoC.


Block Diagram

The following figure describes the i.MX8M Mini Block Diagram.


Visual features overview

Please see below the features overview of the connector side of the HummingBoard Pulse.

Print side connector overview of the HummingBoard Pulse.

Software Setup

Cable setup and prerequisites

Here is what you will need to power up and use the board:

  • Linux or Windows PC

  • HummingBoard Pulse with SOM

  • 12V Power adapter (HummingBoard Pulse has wide range input of 7V-28V), alternatively you can use a PoE injector to power on the device.

  • Micro USB to USB for console, the HummingBoard Pulse has an onboard FTDI chip.

  • IP router or IP switch

Boot Select

Before powering up the board for the first time it is recommended to select the boot media. In order to configure the boot media, please refer to HummingBoard Pulse and Ripple Boot Select .

Booting from SD card

The following shows how to set the switches on the boot source selector:

Please Note:

The black rectangle represents the switch position.

Once you set the switches, you can apply the following for booting from SD card:

1. Downloading the Debian image

Download the Debian image by running the following command on your Linux/Windows PC:


2. Writing the image to the SD card

Use the following commands for writing the image to an SD card:

xz -dc sr-imx8-debian-buster-20210706-cli-imx8mm-sdhc-hummingboard-pulse.img.xz | dd of=/dev/sdX bs=4k conv=fdatasync


3. SD card insertion

Please Insert the SD card into your device.

4. Power connection

Connect your power adaptor to the DC jack, and then connect the adaptor to mains supply.

5. Serial Connection

Please insert the micro USB into your device, then you can refer to Serial Connection for installing necessary serial connection software in Linux/Windows.

Once you installed the necessary serial connection software, you should be able to see the following:

  • In order to be able to log in , please insert “debian” as a username and password as follows:

More Features


Connect an Ethernet cable to your HummingBoard Pulse (for internet access during boot-up).
Models HummingBoard with WiFi, can be connected via WiFi or wired Ethernet.

  • Please check you Ethernet connection.

  • Use the following commands in order to keep your system up-to-date:

apt-get update apt-get upgrade reboot

An example for connecting to WiFi using wpa_supplicant:

1. To bring a WiFi interface up, run the following :

2. Install the wpa_supplicant package:

3. Edit network interfaces file :

At the bottom of the file, add the following lines to allow wlan as a network connection:

4. Create a configuration file with the relevant ssid:

5. Make sure it works:

Restart your device and it should connect to the wireless network. If it doesn't, repeat above steps or get help from an adult.


1. For showing all Bluetooth devices, run the following:

2. Choose a device, and turn it on:

3. Set up the Bluetooth name:

4. Make your Bluetooth detectable by other devices:

5. If you want to connect to other devices:

  • Start by scanning for other Bluetooth devices:

  • Choose a MAC address and connect :

  • You can check the communication between the devices by writing :

GPIO Pins Control

In order to be able to control the GPIO pins, please refer to

Cellular Modem

The cellular modem is a more fully featured extension of which contains a cellular module with additional hardware interfaces and a SIM card slot.

You can connect your cellular modem to the mPCIe, and insert a SIM card.

List Of Supported OS


Build from source



  File Modified

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