Month: December 2016
Voltlog #78 – 2x25W Bluetooth 4.1 Stereo Amplifier TDA7492P
In this episode we are going to build a bluetooth speaker amplifier based on the TDA7492P class D audio amplifier coupled with a Bluetooth 4 module. We are not actually going to build the amplifier module because we can get that from China, very affordable, it only costs around $12 shipped which is way less that it would cost us to buy the bluetooth module and the TDA7492P individually not to mention the cost of fabricating a PCB of this size.
So we are actually going to use this module and build the final product with a nice enclosure and a suitable external power supply
Here are some links for the parts used to build this project:
- Bluetooth Audio Amplifier With Enclosure TDA7492P
- Bluetooth Audio Amplifier PCB Module TDA7492P
- Switching Power Supply Brick 24V 3A
- Aluminium Enclosure 110x66x24
- DC Power Jack Panel Mount
- 3.5mm Stereo Jack Panel Mount
- 4 Way Speaker Terminal
- Mini Rocker Switch On/Off 3A
- 100x100x0.5mm Thermal Silicone Pad
- 20x20x15 Aluminium Heatsink
- Countersunk Screw 3x6mm
- Brass Standoffs Kit
- Self Adhesive Rubber Feet
Wiring diagram below:
Voltlog #77 – InTheMail
Here is a list with the items shown in this video:
- USB Drive Spy Camera
- 35W Radar Motion Sensor Switch
- 4 Channel Wireless Remote Control Switch
- 64 LED 20W 2835 Horizontal Led Light
- 64 LED 60W E27 5730 Light Bulb
- 21 LED 15W E27 Globe Light Bulb
- 21 LED 15W E27 Energy Saving Light Bulb
Links for all of these will be in the video description on youtube.
Voltlog #76 – InTheMail
This what happens when I left myself on a shopping spree, you get a month’s worth of InTheMail episodes. So let’s get started on the 4th episode in a row showing the stuff I get from China.
Here is a list with the items shown in this video:
- Brushless Blower Fan 12V 5015S
- Brushless Blower Fan 5V 6015S
- Cooling Fan 5V 2 Pin 50x50x10mm
- Fan Grill Guard 50mm
- Aluminium Heatsink 150x60x25mm
- TO-220 Aluminum Heatsink 34x12x30mm
- 100W Wire Wound Aluminium Housing Resistor
- 200x175x70mm Plastic Enclosure For Instrument
- 170x130x75mm Metal Enclosure For Instrument
- Rubber Feet Self Adhesive 15mm
- LM2596 DC-DC Step-Down Converter Module
- XL6009 Buck-Boost DC-DC Converter
- 10A BMS 3S Battery Protection Module
- Zener Diode Assortment – Through Hole
- Zener Diode Assortment – SMD
- PT4115 LED Driver IC
Links for all of the items will be in the video description on youtube.