I am using an HM-10 module and Arduino UNO.
My requirement is to read data from ibeacons near me using Arduino. Is it possible? I have not been able to find any articles on this. All articles talk about connecting your android phone with arduino. Any idea?
Yes, it is possible. I'm using an HM-10 as an iBeacon detector (linksprite.com BLE 4.0 shield), and it is successfully detecting a RadBeacon running in iBeacon mode. Firmware on my HM-10 is version 540.
Before it would detect the RadBeacon, I had to send the HM-10 the following commands:
AT+ROLE1
AT+IMME1
AT+RESET
Then I used the AT-DISI? command, and the serial monitor is showing the broadcast received from the RadBeacon (and one other beacon) as follows (for example):
OK+DISISOK+DISC:4C000215:2G234454CF6D5A0FADF2F4911BA9FFA7:00000001AC:0CF3EE041CCE:-052OK+DISC:00000000:00000000000000000000000000000000:0000000000:B9782E08068C:-071OK+DISCE
In this example, the HM-10 is detecting my RadBeacon which has UUID of 2G234454...with signal strength of -052. It is also detecting another BLE beacon (my AppleTV downstairs) with UUID of B9782E08068C with signal strength of -071.
I'm definitely not very knowledgable about any of this stuff, but it seems to be working for me so far. Next challenge for me will be to figure out how to parse the text data being received. I'm mostly interested in the distance/signal strength data in order to trigger an action when the RadBeacon gets very close to the HM-10.
[Full disclosure: I jumbled some of the UUID numbers above since I'm not sure if any of this information is private or hackable or whatever]
[By the way, the nRF8001 BLE Shield will not do this since it only runs in peripheral mode.]
Yes, you can get the Min and Max number of the nearby iBeacons.
You need to Attach hm-10 to Arduino Uno.
Try using this Library : https://github.com/dinosd/BLE_PROXIMITY
You can configure suitable AT commands if you want to configure it. But it should work with default settings as well.
Use SoftwareSerial to access HM-10.
In firmware version V539 of the HM-10, it adds an AT command to list nearby iBeacons. The command is AT+DISI?. You would simply need to set up the Arduion to send that command over a serial port and parse the data it returns.
Related
I have been trying to set the limit of pairing the Bluetooth device HC-05(interface by Arduino controller) with my smartphone.
I have tried making this solution work with AT command
AT+INQM=<Param>,<Param2>,<Param3>
Example: AT+INQM=1,9,48\r\n
But instead of converting AT commands using serial.h with embedded C, I am looking for any dedicated library which helps to work this kind solution in using Arduino.
Basically, with the help of Bluetooth device connect to Arduino Nano, I want to send the altimeter sensor data to my smartphone.
During the connection, HC-05 should be responding any one device at a time, if another smartphone tries to pair then the error will be shown.
Please share your advice on this.
Yes there are some libraries in arduino but these are only meant for connection and pairing and low energy connections. We don't have any dedicated library from where we can control the mode of operation of HC05 or any bluetooth module. like bypassing or accessing GAP and GATT services of bluetooth. However there is a way to flash HC-05. But we can only use it for updating the firmware of this device. This github repo is dedicated for this purpose . Hope it helps you
I want to make an Arduino program that only makes requests for voltage measurement of some sensors through the SCPI protocol connected by RS232. I have found several libraries created by users but they have many unnecessary functions for what I want to do.
Specifically, what is the command to be sent by the RS232 to request the desired sensor voltage?
Thanks.
Try using : Arduino SCPIParser Library by LachlannGunn available on GitHub.
I am using an arduino with HM-10 Bluetooth module. I am able to detect other HM-10(slave) in the vicinity of HM-10(master). In HM-10 datasheet AT+RSSI? command is mentioned which i tried with all possible combinations, but i am unable to extract the rssi value. Is there any way such that i can determine the rssi value using arduino on serial monitor. Any relevant code other than the command will be appreciated.
thanks in advance.
According to the "datasheet", "This command only used by Remote device query when connected."
Basically, to get this to work, you will need to set your slave to remote control mode with the AT command
AT+MODE2
Then, connect your master and slave. After this is done, you should be able to send the master the command "AT+RSSI?", it will send it to the slave, which will pick it up now that is in remote control mode. The slave will then reply with its RSSI value.
Can anyone help me with the AT command to write characteristic value, Or how to send data from arduino to another ble device using Hm10 module.
The HM10 after sending the AT+START, does advertise packets, and can detect the service and characteristic, But the characteristic value is the default 0x00, How can I change that?
Have checked the data sheet multiple times but can not find an AT command that is capable of doing the same.
UPDATE: Similar problem with setting the HM10 in Central Mode:
Central Mode Setup!
1) AT+ROLE1 - Set up to Central Mode
2) AT+IMME1 - Start from RESET
3) AT+SHOW1 - Show discovered devices
4) AT+DISC? - Discover Devices
Get Device MAC ID,
5) AT+CON[MAC ID]
RESULT: Always gives OK+CONNA and after 10seconds OK+CONNF
I am confused, Use of "AT+START" before "AT+DISC?" causes AT+START to not work and viceversa.
Using AT+START results into a loop of OK+CONN followed by OK+LOST continuously and no more AT commands are accepted. I believe it does result in a
Can you advice on the right order?
Using LightBlue iOS app as the peripheral. How am I to select a service and subscribe to a characteristic to receive data from the application?
Thank You.
There is no AT command to set a characteristic value.
The HM10 is a serial-port emulation device - whatever serial data you send to the HM10 module (aside from the AT commands) is made available on it's BLE characteristic. Unfortunately the data sheet doesn't document the service and characteristics, but this code suggests that the serial RX/TX characteristic is 0000ffe1-0000-1000-8000-00805f9b34fb
So, data written to the serial port should appear as the value of that characteristic. Data written to that characteristic should be delivered out of the TX serial port pin on the HM10 module.
This thread is a bit dated. But the HM-1X firmware now supports changing the characteristics of a module.
"AT+CHAR?" Will get the current characteristic setting for RX/TX
"AT+CHAR0xFFFF" will set the TX/RX characteristics to 0xFFFF
Send: AT+CHAR0xAAA0
Recv: OK+Set:0xAAA0
These features were added v518.
If you need to update your firmware,
Link to Huamao's download site.
I don't have enough reputation to comment on Ladvien's answer, but...
Just a word of warning regarding updating the firmware with a new version from Huamao's download site. http://www.jnhuamao.cn/download_rom_en.asp?id=83
In my experience there were issues with V539, which prevented the firmware operating as an iBeacon - and there may be other problems.
I was fortunately enough to find someone emailed me a copy of the V538 firmware and was able to downgrade again.
Huamao doesn't have old versions of the firmware available for download and AFIK there is no way to backup your current firmware version.
But it was possible to downgrade from V539 back to V538 if you have the bin file for V538 etc. i.e At least up as far as V539 the firmware does allow downgrades and was not checking version numbers to only allow upgrades.
No need to use any AT-commands to send data as it works like transparent serial. Currently it works good to upload sketches from iOS devices to Arduino. Check out http://www.apploader.info
I'm using an Arduino to read data from the web and display it. I can easily pass the data as serial using the supplied drivers, because they identify the COM port so I can send serial to the COM port.
However, I want to use 'real' USB techniques so the device can be plugged in and out like a normal USB device. I'm looking at using WinUSB as the driver. However, USB is all new to me. Is there an .inf file that uses WinUSB and an Arduino (I have an Uno)?
The lack of information on this is making me think I am going about this incorrectly.
Turns out that an Arduino Uno is not a genuine USB device.
It acts as a Serial to USB adapter. Consequently USB drivers don't talk to it.
I got round this by writing a sketch which reported back what device it was when it got the correct query from the PC.
On the PC I just iterated the Serial ports and sent the query to each port. The one that replied was the Arduino.
After that I record the port number and send serial data to the Arduino.
To learn the USB portion, maybe you could combine V-USB and the UNO?
Check out V-USB.
V-USB is a software-only implementation of a low-speed USB device for Atmel’s AVR® microcontrollers, making it possible to build USB hardware with almost any AVR® microcontroller, not requiring any additional chip.
While not necessarily Arduino, it may provide you the learning exprience you want, and let you use incorporate your UNO device.