4 Pin 2.4GHz HC-06 Wireless Arduino Sensor Module Bluetooth Wireless Module for Arduino
Brand Name:OEM
Certification:CE, FCC, RoHS
Model Number:OKY3373
Minimum Order Quantity:10 Piece/Pieces
Delivery Time:1-3 workdays after payment
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Shenzhen Guangdong China
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Room1105, Block B, Chinto Technology Building, Minzhi Road, LongHua, ShenZhen city, GuangDong province, China
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Product Details
High Quality 4 Pin HC-06 Wireless Module RF Module Serial RS232
Features:
Allows your device to both send or receive the TTL data via
wireless technology without connecting a serial cable to your
computer. Just power, ground, rx, tx and you can send data to/from
Audio
Works with any USB wirelessadapters
Default Baud Rate: 9600,8,1,n default passcode: 1234
Built in antenna
Coverage up to 30ft
Specifications:
| version | V2.0 + EDR |
| Operating voltage | 3.3V |
| Default Baud Rate | 9600,8,1,n |
| Signal coverage | 30ft |
| Item size | 4.3 x 1.6 x 0.7cm (board length 3.75cm) |
Experiment:
Now we will see how to use wireless module and an Android device to
control your next Audio project.
We will be using the popular HC-06 wireless module, this module makes it possible to send commands and retrieve information from the UNO.
There’s also the HC-05 version of this module that is available.
The main difference between the two is that the HC-05 can act as Master as well as Slave. The HC-06 is Slave only.
In most situations the HC-06 will do the job.
For example you would need to use the HC-05 is if you need the Audio to actually control something on it’s own.
In this tutorial we will retrieve the temperature and humidity information from the sensor connected on the UNO and display it on the free Android app that we will be using called ‘Ardudroid’.
We will also control a WS2812 RGB stick using a PWM slider from the Android device.
We will be using the popular HC-06 wireless module, this module makes it possible to send commands and retrieve information from the UNO.
There’s also the HC-05 version of this module that is available.
The main difference between the two is that the HC-05 can act as Master as well as Slave. The HC-06 is Slave only.
In most situations the HC-06 will do the job.
For example you would need to use the HC-05 is if you need the Audio to actually control something on it’s own.
In this tutorial we will retrieve the temperature and humidity information from the sensor connected on the UNO and display it on the free Android app that we will be using called ‘Ardudroid’.
We will also control a WS2812 RGB stick using a PWM slider from the Android device.
There are many different ways to connect these HC-0x Audio modules.
Some involves using libraries to communicate with the modules using Software Serial connections to enable you to still program (send sketches) to the UNO without having to unplug the wireless module.
The tradeoff is that if you use these methods you lose some Pins on the UNO which are then used to connect the module.
Instead, we will just disconnect the wire on Pin 0 of the UNO when we want to program it.
This way we can connect the module to the default Pin 0(RX) and Pin1(TX) and still have all the other pins available to play with.
As you can see in the schematic above, we are using some resistor (470Ω and 680Ω) to drop the voltage of the UNO TX pin from 5V to around 3V.
This is important since the HC-06 uses 3.3V logic and using the default 5V of the UNO would damage the module.
Also we power the module using the 3.3V from the UNO not 5V, even if the HC-06 supports up to 6V.
From our testing we noticed that if powered from 5V the ‘Get Data’ window on the ArduDroid app would not work properly.
Photos
4 Pin 2.4GHz HC-06 Wireless Arduino Sensor Module Bluetooth Wireless Module for Arduino
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