How to Change the Bluetooth Amplifier Auto Connect Settings

The Bluetooth audio amplifier/receiver default settings is auto reconnect with the recently paired devices. Sometimes, we don't want it auto reconnect. This tutorial will teach you about how to do it.
Date added 04/11/2017
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How to Restore AudioB Plus Module Default Settings

All of our Bluetooth audio amplifier and Bluetooth audio receiver user can change the Bluetooth settings by themself. Sometime, It will cause problems if you set a wrong parameters. This article will introduce how to restore the Bluetooth default settings
Date added 20/07/2017
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Remote Control a LED with Arduino 3G Shield

Here is a simple sample code of how to control a LED with Arduino 3G shield. User can control the LED ON/OFF by sending a simple SMS. This sample code can receive SMS and analyze the contents of the short message.
Date added 09/07/2017
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How to change BT module audio gains and Hands Free Settings

In some cases, You may want limit the maximum output audio gains. All our amplifier boards have a programming port on it. You can change the BT Audio gains by yourself.
Date added 11/06/2017
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How to update the font for Arduino OSD Shield - MAX7456

The MAX7456 comes with the default font, you may not particularly like the existing font, or the default font can not meet your needs. Now you can design your own font and update to your OSD Shield.
Date added 09/06/2017
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How to Pair and Set the TWS Bluetooth Audio Receiver Board

TWS Bluetooth Audio Receiver Board is a TWS enabled Bluetooth 4.2 audio receiver board. People can also use two of this board to build a wireless stereo speaker system. In this tutorial, we’ll show you how to pair two TWS Bluetooth audio receiver board, a
Date added 22/04/2017
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How to upgrade firmware for SIM5320A/E

Tinysine 3G Cellular Shield provides you a way to use the 3G/GSM cell phone network to receive data from a remote location. You may want upgrade the on board SIM5320A/E to latest version. This tutorial will teach you how to do it.
Date added 18/02/2017
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Enable Bluetooth Audio Amplifier Pin Code (Password)

Maybe you want add a password to your BT amplifier. We just updated the AudioB plus design and breakout the programming port. Here we will introduce how to enable and set the bluetooth module password.
Date added 18/09/2016
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3D Printed Enclosure for TOSR0x Relay Boards

Many of our customers want an enclosure to protect their relay board. We are sorry we don't have it. It's very expensive to make a new plastic box mold. But if you have a 3D printer. We can printer an enclosure! Cheap and easy to use.
Date added 13/09/2016
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How to export Gerber files from Altium Designer

Many people use "Altium Designer" as their printed circuit board design software. If you want use our PCB service the best way is provide us Gerber files. Here is the guide of how to export the gerber files.
Date added 03/08/2016
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