A hardware module(Controller) needs to be created, which will consist of the following components: processor, internal memory, rechargeable battery with capacity 950-1100mA/h (to power the device when external supply is lost), power supply module, GSM module, SIM ВТ module that can connect to Smartphone or tablet , WiFi module for data share through the existing wireless networks, external GSM ,ВТ и WiFi antenas, LED lights that indicate the mode that the device is working in, service buttons , interface coupling for the connecting cables, embedded accelerometer (to track the change in the position of the machine or eventual burglary case).
It needs to be build in such way, that it can communicate with the existing models and brands of vending machines that use one of the below listed protocols:
MDB (Multi-Drop Bus) – protocol, that is used to connect the separate modules of the trading automate to a general splint, which supports the logic and the way they work. The main microcontroller of the device is the one that controls everything and sends commands to other devices (coin collector, banknote collector and card reader).
The controller needs to be able to pair with the required bunch of cables, with connecting couplings that can be attached to the Mother board of the machine as to receive the collected information through it. Due to the wide range of hardware solutions for all the different models, the controllers needs to be able to attach easily to all the interface attachments of the controlling Mother boards. All parameters of the modem and its programming should be done distance, by using the GPRS connected FOTA. In addition, for the comfort when using the device, the modem needs to be able to receive SMS-commands (example: to check the level of the signal; change in any parameters; restart; clearing any mistakes or bugs etc).
As well as all of the above mentioned, it needs to have RS232, 1- wire inputs for temperature or RFID reader,4 digital and 2 analogue inputs that track the parameters as well as 2 digital outputs for restart or stopping of the machine, separate from the above mentioned protocols.
In general, the device will need to be able to connect if required and read the following information:
1. The display of the device
2. The numerical keyboard
3. The coin mechanism
4. Card Reader
[login to view URL] receiver/collector
6. Termoprinter /option/
The project requires:
- To design the hardware /scheme and PCB/ of the controller with the assistance and guidance from the assignor
- To write a firmware, which will execute the assigned tasks- this will be described in detail in the document containing the requirements
- An official software module used to set (re-set) the module
- A production of a device- simulator that will test the modes that the device (controller) can work in
PS: Before working together we require you to sign a NDA agreement for confidentiality
Thanks for the understanding.
Please read the attached file for more information on the project.
additional description with the protocols that the controllers needs to be able to communicate with the vending machines
20 freelanceri licitează în medie 5171€ pentru acest proiect
Dear Sir I've carefully checked your job posting and I'm very interesting in this position. As you can see in my profile and work history I have an excellent background in this position. Please feel free to as Mai multe
HI, About the Project : We have developed similer projects before Can we talk about the project :) About us : We have been freelancing for 10 years and has perfect reviews on all my projects. We am are Ex Mai multe
Hi there , I am an electrical engineer with 19 years experience in this area. People run big businesses on systems I build.
Hi I did a very similar project couple years ago and having a working prototypes. Seems like all items except WiFi were included into my device. Could we setup a video call, so I would present what I did and we ca Mai multe
Hello, I am Anthony from Sri lanka. We are a hardware designing & prototyping company. Why you should hire me ? - I have seven years of experience in the field and have developed manysystems. - I hav Mai multe
Hello. Thanks for posting this project. I am an expert having rich experience in schematic circuit, PCB layout and firmware. best regards.
Hello, I read your project description document carefully and am very interested to work in your project because my experiences and skills are great fit for this position. I have rich experiences with high tech E&E des Mai multe
Dear Sir, I have experience developing PCB BOARD for the communication interface, GSM, LTE, WIFI, LAN, BT. I have experience in Embedded programming, Schematic Design, Component selection, and Sourcing. I Mai multe
Hello, I am a specific self taught software developer and automation specialist. Please see some of my previous works on the links : [login to view URL] [login to view URL] I developed a lot Mai multe
Hi, We will develop your vending telemetry solution with complete hardware and firmware development. We have a very experienced team of embedded and IoT developers and have developed numerous such solutions in past. Mai multe
Hello Sir, i can design and built sample for you for this project. i am from shenzhe, china. i have all resourcs to design this project and test. please take my interview for this project.
Hi, Thanks for sharing your details. It seems you are looking for Product Engineering company like us to get full functional product from scratch (Circuit design, Schematic and Layout design, component selection, PC Mai multe
We have built EXACTLY what you described and more and specialise in Vending Industry. You outlined keypads, temp controls and payments / interactions with many vending machines, but you really need to define the Ve Mai multe
hello,how are you. i read your bid carefully. i am c/c++ expert and have full experience for 10 years. c/c++ language is my top skill and i can complete your project fully. i can provide most quality and high speed. Mai multe
Our team has more then 10 years of experience of development of electronic devices (hardware-software production). We are assure that we can develop a prototype of non contact voltage testers according to a tas Mai multe
Hi, We are having one of the best team in India to design & develop software applications ( embedded as well) ,PCB design & firmware application, iOT, GPS device & GPS Tracking etc. SCOPE : a New Hardware Con Mai multe