PIC Based Coffee Machine Control

Too many losers and Tyre Kickers on this site. If you can NOT READ THIS SPEC, PLEASE DO NOT BID!!!

Do NOT offer to write it in C - the request is for Assembler!

Coffee Machine Controller

This is an URGENT requirement for a client. The board will be based around a Microchip PIC16F1527 - the hardware design is 95% complete. You just need to sign off on the schematic and write the software. We will produce a board for you to test on;

8 Relay Outputs

6 keyswitches + 6 LEDs x 4 scan lines (multiplexed)

4 x Flow Sensor Inputs (logic pulse proportionate to flow)

4 x Water Level Probes (logic from Op-Amp pulled Low when water present)

2 x RTD Analogue Inputs

16 x 2 LCD Display in 4 bit mode (4 data + 2 control preferred)

1 x Serial Connection (for future use)

1 x Buzzer output

1 x Real Time Clock (2 x I/O)

1 x PWM Output (fixed at approx 500Hz


Menu system - ENGLISH only to start, but will introduce other languages as time permits and market requires it.

The 'basic' description of function is 4 groups of 6 buttons. Of those 6 buttons, one is 'manual' - simply toggles it's relay on and off. Another 4 are 'portions'. Press a button, grab a value from EEPROM and monitor the corresponding flow sensor for interrupts. If the count reaches EEPROM value, then that drink is finished. Last button is simply timed. Time setting stored in EEPROM.

Will start with 'basic' functions to start, then add new features later as a separate 'software upgrade' project that the successful candidate would have first option on.

You MUST write and submit WELL COMMENTED and 'modular' ASM code. Please do not bid if you want to write this in a higher level language.

We will supply you with one or more new completed boards - ready to program. We can also supply you with one of the client's old boards - fully operational. FULL function spec provided to successful candidate.

Prefer candidates to be based locally in Australia - should a face to face meeting be required - otherwise, we can communicate via the Internet.

This is an important client and is a good opportunity for us. More work will follow.

Happy bidding!

Compétences : Electronique, Logiciels Embarqués, Microcontrôleur

Voir plus : pic based, pic based coffee machine control, rtd, coffee machine software design, us basic english test, system sensor, requirement spec, logic supply, future electronics, flow x, Control 4, australia work opportunity, amp control, ready in sign language, i control, us english level 4, tyre, timed, the add water, PWM, permits, microcontroller design, manual software test, machine language, machine design

Concernant l'employeur :
( 5 commentaires ) Dee Why, Australia

N° du projet : #1616840

14 freelance ont fait une offre moyenne de 1264 $ pour ce travail


hi i can do it please see PMB. regards

1000 $ AUD en 20 jours
(6 Commentaires)

Dear Sir, We are Reserach and Development company whose working area are : -Digital Motor Control -Analog Design -Electronic Design -Power Electronics -PCB design -Embedded system -Matlab -Simulation of ha Plus

1000 $ AUD en 12 jours
(0 Commentaires)

Hi!! Greetings We are group of developers working on various technologies in electronics and PLC. We had designed Industrial PLC Project for companies in India. We are intersted for doing your project.

1200 $ AUD en 90 jours
(0 Commentaires)

I have degrees in Electrical Engineering and Computer science. I also teach courses in microcontroller programming for a technical institute. With a good set of requirements and hardware to test on I'm confident I ca Plus

1000 $ AUD en 20 jours
(0 Commentaires)

Hi, I've experience in developing firmware with assembly on 8051, I've programmed external I/O, ADC, timers and counters. I can deliver good results.

1000 $ AUD en 15 jours
(0 Commentaires)

Hello, i'm an engineer very experienced in think kind of projects. I will write high quality assembly code that does exactly what you want and suggest improvements if i find any. From the day that i receive the product Plus

1200 $ AUD en 5 jours
(0 Commentaires)

Dear. Please check your PMB. Regard. Goldstar.

1000 $ AUD en 14 jours
(0 Commentaires)

We are providing this service so affordable because we want to prove our expertise, build a longterm relationship so when you have other IT needs, and substantiate a Freelance record of good customer relations. The fol Plus

1400 $ AUD en 7 jours
(0 Commentaires)

Hello, I can do this ;)

1000 $ AUD en 30 jours
(0 Commentaires)

Hi, we are a engineering consulting company and we have many experience in this field. Please, Mr. Dalcorn see our profile and choose the our professionalism, choose the Italian Engineering. Best Regards

900 $ AUD en 38 jours
(0 Commentaires)

I thought I already bid on this project.

1500 $ AUD en 60 jours
(0 Commentaires)

I am a very experienced Microchip Design Partner with well over 20 years experience in h/w and embedded s/w development. I write all my PIC code in assembler unless specifically asked to write in C. The reasons I am bi Plus

1500 $ AUD en 21 jours
(0 Commentaires)

This project writing with Assembler (MPLAB)codes,Original ASM Codes Provided with HEX File.10 years Experience of Embedded Systems Design.

1000 $ AUD en 7 jours
(0 Commentaires)

Hello, I can write it entirely in .asm for pic16 series. Check my PM. Regards

3000 $ AUD en 60 jours
(0 Commentaires)