Mar 25 2020

Based on the BC chipset, this Bluetooth module will serve as master and slave in one unit, allowing up to 10 meters (roughly 10 yards) or wireless data. You can use this module to communicate between two microcontrollers like Arduino or communicate with any device with Bluetooth. lent Bluetooth Module, it is fully certified to Blue- Radio Chip: CSR BC Memory: 5V voltages out of the Bluetooth module when operated with a 5V host.

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Slave only module Bluetooth 2. PC standard COM port hardware does not support baud rates in excess of bps.

Most PCs cannot use a baud rate above Pin 34 is only used for HCs. The good after-sale service and fast delivery are available. Example From Host controller: There are two most frequently applied Bluetooth Profiles for the general data communication between Smart Device and Bluetooth Peripheral: Everything received via Bluetooth bluetoth be given out by this pin as serial data.

You may need to reset the module before the new name is broadcast. HTML is not translated! Slave devices cannot initiate a connection which means you cannot link 2 HCs together.

Double check the connections and the resistor values. After a connection has been made the modules go in to transmission mode. It is very possible they have a different firmware. Add to Cart Compare.

HC (ZG-BW) Bluetooth EDR modules | Martyn Currey

Submitted by admin on 10 March All the commands in the data sheet work though. The HC has two operating modes, one is the Data mode in which it can send and receive data from other Bluetooth devices and the other is the AT Command mode where the default device settings can be changed. This is good if all you want is to bluetootb 2 things talk to each other.


Not combination of activity on the power and Dataseet presume command pin 34 had any effect. The HC enters AT command mode at start up. Not response to AT commands at all.

HC-31 Bluetooth 2.0 Module -BC417

Firstly, let us know your requirements or application. It may also be worth while trying to connect to a Bluetooth terminal app. Because of this behavior, it may be extremely difficult to do manual entry configuration using Windows Hyperterminal software or similar. Instead, it acts to whatever character you entered after one second.

The information on difference between HC and HC is not entirely correct. While connected, pulling PIN34 high switches from data to command mode.

More Than 100m Long Range CSR BC417 Class1 Bluetooth Module Support HID SPP Network FSC-BT405

The Arduino reads 3. Any serial stream from to bps can be passed seamlessly from your computer to your target. Broadcasting as HC currently… I know the module works as is as I have just used the same one for the drop controller I built from your circuit diagrams thanks btw, its a step up from my HiViz unit: Can datasheey try swapping them.

At commands cannot be entered again until the connection is broken. When the modules are first powered on they go in to AT mode. The Bluetooth Module does not wait for any termination character for each Bc147 command entry.

By default it is in Data mode 2 Vcc Powers the module. In Summary, If one product need to support iOS and Android devices simultaneously, our Bluetooth dual mode modules are the best choice. The baud rate and PIN cannot be interrogated so take care when setting.


The module has a pin spacing of 1. Bluetooth Modules Martyn Currey. I have included an older English data sheet for the same firmware in the downloads section below. You can download it at the bottom of the page.

The state pin datassheet connected to on board LED, it can be used as a feedback to check if Bluetooth is working properly. Nowadays, there are a lot of devices powered by Bluetooth 4.

I have no real use for these except to see if they are different to previous versions. There are a few ways to connect serial Bluetooth modules to a PC.

The default is This pin is used to toggle between Data Mode set low and AT command mode set high. Indicates the status of Module Blink once in 2 sec: The boards had http: PC to prevent unauthorized pairing.

The HC is a Bluetooth 2. Arduino Pro Mini – 3.

Up to around 30 feet 10 m Sensitivity: No user code specific to the Bluetooth module is needed at all in the user microcontroller program. When powered on the LED flashes bluetloth 10 times a second.

Finally, we arrange the production and shipping.