velleman VMA338 Bluetooth 4.0 Shield User Manual

: June 13, 2024
: Velleman

Table of Contents

velleman VMA338 Bluetooth 4.0 Shield
Product Information
Product Usage Instructions
Introduction
Safety Instructions
General Guidelines
What is Arduino®
Overview
Description
More Information
Documents / Resources

velleman VMA338 Bluetooth 4.0 Shield

Product Information

Model: VMA338
Intended Use: Bluetooth 4.0 Shield
Age Recommendation: Suitable for children aged 8 years and above, and persons with reduced physical, sensory, or mental capabilities
Safety Instructions:
- Device should not be used as a toy by children.
- Children should not perform cleaning or user maintenance without supervision.
- Indoor use only. Keep away from rain, moisture, splashing, and dripping liquids.
General Guidelines:
- Device modification is not covered by the warranty.
- Use the device only for its intended purpose.
- Using the device in an unauthorized way will void the warranty.
- Damage caused by disregarding the guidelines in the manual is not covered by the warranty.

Product Usage Instructions

Download the app “BleSerialPort.zip” or “BleSerialPort.apk” from the Velleman website.
Install the BleSerialPort app on your device.
Open the BleSerialPort app.
Tap on the three dots menu and select “connect”.

More Information

Please refer to the VMA338product page on the Velleman website for more information.

Declaration of Conformity

Velleman NV declares that the radio equipment type VMA338 is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at www.velleman.eu.

Warranty and Copyright

Use this device with original accessories only. Velleman NV cannot be held responsible for any damage or injury resulting from incorrect use of this device. For more information about this product and the latest version of the manual, please visit the Velleman website. The information in this manual is subject to change without prior notice. The copyright to this manual is owned by Velleman NV. All worldwide rights reserved. No part of this manual may be copied, reproduced, translated, or reduced to any electronic medium or otherwise without the prior written consent of the copyright holder.
Made in PRC. Imported by Velleman nv, Legen Heirweg 33, 9890 Gavere, Belgium.

Introduction

To all residents of the European Union
Important environmental information about this product
This symbol on the device or the package indicates that disposal of the device after its lifecycle could harm the environment. Do not dispose of the unit (or batteries) as unsorted municipal waste; it should be taken to a specialized company for recycling. This device should be returned to your distributor or to a local recycling service. Respect the local environmental rules.
If in doubt, contact your local waste disposal authorities.
This symbol on the device or the package indicates that disposal of the device after its lifecycle could harm the environment.
Do not dispose of the unit (or batteries) as unsorted municipal waste; it should be taken to a specialized company for recycling.
This device should be returned to your distributor or to a local recycling service. Respect the local environmental rules.
If in doubt, contact your local waste disposal authorities.

Safety Instructions

This device can be used by children aged from 8 years and above, and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning the use of the device in a safe way and understand the hazards involved. Children shall not play with the device. Cleaning and user maintenance shall not be made by children without supervision.
Indoor use only.
Keep away from rain, moisture, splashing and dripping liquids.

General Guidelines

Refer to the Velleman® Service and Quality Warranty on the last pages of this manual.
Familiarise yourself with the functions of the device before actually using it.
All modifications of the device are forbidden for safety reasons. Damage caused by user modifications to the device is not covered by the warranty.
Only use the device for its intended purpose. Using the device in an unauthorised way will void the warranty.
Damage caused by disregard of certain guidelines in this manual is not covered by the warranty and the dealer will not accept responsibility for any ensuing defects or problems.
Nor Velleman nv nor its dealers can be held responsible for any damage (extraordinary, incidental or indirect) – of any nature (financial, physical…) arising from the possession, use or failure of this product.
Due to constant product improvements, the actual product appearance might differ from the shown images.
Product images are for illustrative purposes only.
Do not switch the device on immediately after it has been exposed to changes in temperature. Protect the device against damage by leaving it switched off until it has reached room temperature.
Keep this manual for future reference.

What is Arduino®

Arduino® is an open-source prototyping platform based in easy-to-use hardware and software. Arduino® boards are able to read inputs – light-on sensor, a finger on a button or a Twitter message – and turn it into an output– activating of a motor, turning on an LED, publishing something online. You can tell your board what to do by sending a set of instructions to the microcontroller on the board. To do so, you use the Arduino programming language (based on Wiring) and the Arduino® software IDE (based on Processing).
Surf to www.arduino.cc and www.arduino.org for more information.

Overview

The VMA338 uses an HM-10 module with Texas Instruments® CC2541 Bluetooth v4.0 BLE chip, fully compatible with VMA100 UNO. This shield has extended all the digital and analogue pins out into 3PIN, making it easy to connect to sensors using 3PIN wire.
A switch is provided to switch on/off the HM-10 BLE 4.0 module, and 2 jumpers allow to select D0 and D1 or D2 and D3 as serial communication port.

pin header spacing ……………………………………………………………………………………. 2.54 mm
Bluetooth® chip . ……………………………………………………………… Texas Instruments® CC2541
USB protocol . …………………………………………………………………………………………. USB V2.0
working frequency . ……………………………………………………………………….. 2.4 GHz ISM band
modulation method …………………………………………… GFSK (Gaussian Frequency Shift Keying)
transmission power ………….. -23 dBm, -6 dBm, 0 dBm, 6 dBm, can be modified by AT command
sensitivity ……………………………………………………………………………. =-84 dBm @ 0.1% BER
transmission rate ……………………………………………………………………. asynchronous 6K bytes
security ……………………………………………………………………….. authentication and encryption
supporting service ………………………………………………… central & peripheral UUID FFE0, FFE1
power consumption . ………………………. 400-800 μA during standby, 8.5 mA during transmission
power supply shield ……………………………………………………………………………………… 5 VDC
power supply HM10 . …………………………………………………………………………………… 3.3 VDC
working temperature ……………………………………………………………………………. -5 to +65 °C
dimensions . …………………………………………………………………………………. 54 x 48 x 23 mm
weight ………………………………………………………………………………………………………… 19 g

Description

1	D2-D13
2	5 V
3	GND
4	RX (D0)
5	TX (D1)
6	Bluetooth® LED
7	Bluetooth® communication pin settings, default D0 D1; another RX TX

pin to set the serial port, RX to D3, TX to D2
8| GND
9| 5 V
10| A0-A5
11| Bluetooth® on-off switch
12| reset button

Example

In this example, we use one VMA338 mounted on the VMA100 (UNO) and a recent Android Smartphone to communicate with.
Please be aware that BLE (Bluetooth® Low Energy) is NOT backward-compatible with the older “Classic” Bluetooth®. For more information please see https://en.wikipedia.org/wiki/Bluetooth_Low_Energy.
Carefully mount the VMA338 onto the VMA100 (UNO), copy-paste the code below into the Arduino® IDE (or download the VMA338_test.zip file from our website).
int val;
- int ledpin=13;
void setup()
- Serial.begin(9600);
pinMode(ledpin,OUTPUT);
- } void loop()
{ val=Serial.read();
- if(val==’a’){
digitalWrite(ledpin,HIGH);
- delay(250);
digitalWrite(ledpin,LOW);
- delay(250);
Serial.println(“Velleman VMA338 Bluetooth 4.0 Shield”);
Remove the two RX/TX jumpers from the VMA338 or switch off the HM-10 module (you have to send the code to the VMA100, not to the VMA338), and compile–upload the code.
Once the upload finished, you can put back the two jumpers or switch on the HM-10.
Now, it is time to prepare the smartphone where we need a Bluetooth® terminal to talk and listen to the VMA338. As mentioned before, BLE 4.0 is NOT compatible with classic Bluetooth® so many of the available Bluetooth® terminal apps will NOT work.
Download the app BleSerialPort.zip or BleSerialPort.apk from our website.
Install the BleSerialPort app and open it.
You will see a screen like this. Tap on the three dots and select “connect”.
Make sure the Bluetooth® function is switched on and your phone is BLE compatible. You should now see the VMA338 under the name HMSoft. Connect to it.
Type “a” and send it to the VMA338. The VMA338 will answer with “Velleman VMA338 […]“.
At the same time, the LED connected to D13 on the VMA100 (UNO) will switch on for a few seconds.
An interesting link about the HM-10 and BLE: http://www.martyncurrey.com/hm-10-bluetooth-4ble-modules/.

More Information

Please refer to the VMA338 product page on www.velleman.eu for more information.
For more information about the CC2541 Bluetooth® chip, please go to http://www.ti.com/product/CC2541/technicaldocuments.

RED Declaration of Conformity

Hereby, Velleman NV declares that the radio equipment type VMA338 is in compliance with Directive 2014/53/EU.
The full text of the EU declaration of conformity is available at the following internet address: www.velleman.eu.
Use this device with original accessories only. Velleman nv cannot be held responsible in the event of damage or injury resulting from (incorrect) use of this device.
For more info concerning this product and the latest version of this manual, please visit our website www.velleman.eu. The information in this manual is subject to change without prior notice.

Velleman® Service and Quality Warranty

Since its foundation in 1972, Velleman® acquired extensive experience in the electronics world and currently distributes its products in over 85 countries.
All our products fulfil strict quality requirements and legal stipulations in the EU. In order to ensure the quality, our products regularly go through an extra quality check, both by an internal quality department and by specialized external organisations. If, all precautionary measures notwithstanding, problems should occur, please make appeal to our warranty (see guarantee conditions).

General Warranty Conditions Concerning Consumer Products (for EU):

All consumer products are subject to a 24-month warranty on production flaws and defective material as from the original date of purchase.
Velleman® can decide to replace an article with an equivalent article, or to refund the retail value totally or partially when the complaint is valid and a free repair or replacement of the article is impossible, or if the expenses are out of proportion.
You will be delivered a replacing article or a refund at the value of 100% of the purchase price in case of a flaw occurred in the first year after the date of purchase and delivery, or a replacing article at 50% of the purchase price or a refund at the value of 50% of the retail value in case of a flaw occurred in the second year after the date of purchase and delivery.

Not covered by warranty:

all direct or indirect damage caused after delivery to the article (e.g. by oxidation, shocks, falls, dust, dirt, humidity…), and by the article, as well as its contents (e.g. data loss), compensation for loss of profits;
consumable goods, parts or accessories that are subject to an aging process during normal use, such as batteries (rechargeable, non-rechargeable, built-in or replaceable), lamps, rubber parts, drive belts…
(unlimited list);
flaws resulting from fire, water damage, lightning, accident, natural disaster, etc.…;
flaws caused deliberately, negligently or resulting from improper handling, negligent maintenance, abusive use or use contrary to the manufacturer’s instructions;
damage caused by a commercial, professional or collective use of the article (the warranty validity will be reduced to six (6) months when the article is used professionally);
damage resulting from an inappropriate packing and shipping of the article;
all damage caused by modification, repair or alteration performed by a third party without written permission by Velleman®.
Articles to be repaired must be delivered to your Velleman® dealer, solidly packed (preferably in the original packaging), and be completed with the original receipt of purchase and a clear flaw description.
Hint: In order to save on cost and time, please reread the manual and check if the flaw is caused by obvious causes prior to presenting the article for repair. Note that returning a non-defective article can also involve handling costs.
Repairs occurring after warranty expiration are subject to shipping costs.
The above conditions are without prejudice to all commercial warranties.
The above enumeration is subject to modification according to the article (see article’s manual).
Made in PRC
Imported by Velleman nv
Legen Heirweg 33, 9890 Gavere, Belgium www.velleman.eu