Create a 1-wire device

Hi, I have a sketch for the device ready. Contact me on my account please and I will post it to you. It includes ASD1118 form TI and ATTiny45 form Atmel plus a bunch of resistors and cups. No need jumpers, it can detect the sensor attached. Regards, dsnejko.

Hello Mr. first of all let me introduce myself. My name is Leonardo and I work with electronics circuits (digital, analog, mixed and of power) and embedded products with microcontrollers since 1996 . I designed circuits and products for big companies and also for individual people - I do not make a distinction, all jobs are important to me. The electronics was my love since I was child and became my profession. I understand your requirements and I agree with you about the milestones. We can divide in two milestones. One in the start and another at the finish. You release both after final test and I release the sources at same time. The deriverable will be: Before milestone release: - Gerbers; - BOM; - Components placement guide; - Hex file; After milestone release: - Altium designer project (schematic and PCB); - Microchip PIC C sources (mikroelektronica compiller). Looking forward to work with you. Regards Leo

hi, i am an electrical engineer. i have expertise in embedded system design.i can help you with this project.

A proposal has not yet been provided

Hi, I am Geo, from India. In one of our previous project, we got chance to work with a US based company Page&Pedersen Inc and successfully designed & delivered a high accurate Temperature & Ph reading & logging devices. In that cases the temperature is read through either a RTD or TC. After that we received new orders for their new logging devices. Here I believe, you require such a temperature monitoring device and the data required to transfer with a master controller (through just a single pin), such a way that a DS18b20 sensor works. Hope the DO pin (output) should have in the logic level itself (5V. (or a level shifted out is required for more distance communication). Also the temperature range is same as the DS18b20 ( -55 to 150) @ 0.5C steps. . We can design such a product according to your requirement. Hoping to hear more from you. Regards, Geo

Hi, I am familiar with ds18b20 and 1-Wire protocol . This project can be implemented on Atmega. As ADC can use either the built ADC, if not require high accuracy. Or ADC like ads12xx for high precision. PCB is designed in the Eagle. The program is written in C.

Hello, if you don't have space limitations Arduino will best serve the job, i will program the arduino to get the data from k-type thermo couple and will output the data to to a single wire just as DS18B20 or if you do't want to use arduino (arduino is open source i can also arrange the demo) then any meaga series AVR (e.g ATMEGA8) can be used or to keep it very simple you can use AT89c2051/ AT89c8051 with ADC0804. We have many choices. Please feel free to contact. Regards. Please note: I can also fabricate the circuit and ship it you.

Hi, I have completed a similar project for 1-wire device. But it was a software development: https://www.freelancer.com/projects/Java/Web-Application-iButton-Integration.html I have an iButton DS1992, DS1994 and the USB reader. But I don't have DS18B20 sensor. Hope we can work together later. Thanks and Regards, Long

Hello: I'm a Mechatronics Technologist with a wide experience working with microcontrollers such as PIC, AVR and Freescale (Kinetis and Coldfire), i also have experience designing PCB on Altium designer. Feel free to contact me for more details

Hi there! I can propose device on Atmel tiny series MCU 8-pin count, 10-bit ADC. I suggest to use thermocouple, with option of software choose type of thermocouple.

Nice project. I have designed a one wire device, but not for temperature. I have over thirty years of experience in mixed signal design and I think this would be a fun challenge! For me it would be either an Atmel, or some other (lower power probably) ARM-Cortex-M series processor. I don't do Microchip MCU designs. I assume you need a prototype to validate the work, that is included. Love to talk to you if you feel the need. All work done in North America by a qualified engineer. Skype: johnday_toronto Kindly, John

I would be glad to help you with the board design. I can do this in Altium designer and one of the microchip controllers. It depends on what is the resolution do you need on the ADC and what other features do you require from the controller. Is the signal processing from the thermal sensing unit already in place or is it going to be part of the board ?

Hi, I am an expert with more than 10 years of experience in the field of embeded systems, electronics, programming and pcb layout. I have worked on several MCUs including 8051, PIC, AVRs and MSP430s. I have read the details of your project and I would like to work with you to produce a fine quality product for low cost. I would charge you US$ 600 and ensure delivery of prototype samples within 45 days. This includes 1- Schematics design and PCB layouts 2- PCB fabrication and parts/components sourcing 3- On board stuffing and trouble shooting 4-Firmware development and porting it to the target. 5- Shipment of x2 working samples to your address for testing and evaluation. If you have any question pls feel free to ask Regards Chaudhry

Hello. Does Arduino UNO works fine for you? It does not need PCB layout because its a ready platform. With best regards

I am highly interested in this project and will help you achieve results above and beyond your expectation with a quick turnaround...Hope to achieve next positive feedback from you!!! 

Dear hiring manager , • In these days I m working on single phase energy meter Using Maxim Integrated Teridian 71M6541 chip & CTs , with GSM module Fibocom G610 & Renesas R8C 5rf212BC to serially communicate b/w two & Renesas also communicate through uart with Teridian 71M6543 to request data from it. Rest experience is as follow : • Developed & Deliver Complete 16 bit Computer with external RAM ,ROM EEPRROM, Data-bus & 8086 Microprocessor for Military application. • Developed Power supply of 40 amperes ,intput 22 -28V, output volts 28V constant & UPS for Military application, with 24V 20 cells battery of 7Ah. • Work on different sensors Cross Wind Sensors , Atmospheric temp. charge Temp. • Develop Atmospheric temp. sensor ,measure atmospheric temp. • Develop Charge temperature Sensor , measure powder temp. using LM335 • Develop Tilt Sensor measures the Degrees of tilt of body , using SCA103T built in chip. • Develop angular velocity Sensor gives rotation of body , using YUMO E6B2-CWZ1X Rotor Pulse encoder • Designed Pressure Sensor Measure Atmospheric pressure using, MPX5100 sensor • Develop Wind Sensor gives direction & speed of wind using FS2 FLOW sensor & PIC18f26K80 Micro-controller , turn nonlinear output of FS2 to linear output • All Sensors are Military grades with high temperature range &strong mechanical structures • Wireless technology that I used Blue-tooth module HC06/HC05, ZigBee & ZigBee Pro , GSM Module. I m looking forward to your Kind response

I'm final year Electronic engineering undergraduate of University of Moratuwa. I'm expert in this field. I can help you. Thank you