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microcontroller/dsp design for 12 bit true RMS voltage to digital conversion

$30-250 USD

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已发布将近 2 年前

$30-250 USD

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I need a digital true rms to digital converter. Source is a current transformer 0-1vac for rated turns ratio. I just need a i2c output. 2 wire input to board is floating 0-1vac to a 100 ohm resistor. 5vdc input (2 wire) with a 3.3v i2c interface(3 pins). There is many examples of hardware/software for doing this on the internet. I would like to use microchip but any low cost solution will do. Quote design, pc board layout and working sample as 3 different quotes. I feel that using and esp32 is a good solution.
项目 ID: 34180830

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活跃2 年前

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Hello How are you? Thanks for your posting job. I have read your project requirements and I am 100% sure I can complete your project perfectly. ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ I have 15 years experience in Circuit & PCB layout design and Microcontroller Firmware design. I will do my best to give you satisfactory results if you hire me. Please discuss about your project in more details. I can deliver your job efficiently within timeline. If you hire me, I think you won't regret. Best regards. Thank you Koba
$150 USD 在3天之内
4.3 (24条评论)
6.6
6.6
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Hello, I am an electronics and telecommunication engineer and my major is wireless systems' design. I am experienced in hardware and embedded systems' design. I have designed/printed/tested many PCBs and I wrote many firmwares I have checked your requirements I am quite sure that I can help you with your project. Just give me all the details and I will do my best to help you. Best regards
$140 USD 在7天之内
4.7 (56条评论)
5.7
5.7
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Good day, I can provide digital true rms to digital converter with microcontroller/dsp using microchip for 12 bit true RMS voltage to digital conversion. I would like to have a thorough discussion on this project as there are certain suggestions from my side After dedicating more than 30 years to the electronics design and development, I am passionate in designing the best products Technology wise I have worked on all the latest technologies like GSM, 5G, Lora, Digital True RMS, Microcontroller, Voltage, Microchip, etc And have worked on more than 20 design tools for designing and simulation purpose Some of the generic queries from my side are: 1. What is the application of this product? 2. What will be the ambient temperature of this product? 3. What are the mechanical constraints to be taken care of? If you are someone who wants to benefit from my experience just message me Hi and I shall be there for you  Regards Hari Mohan Engineering for one is magic for others
$140 USD 在2天之内
5.0 (5条评论)
5.2
5.2
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Is the AC signal sinusoidal-ish or more complex? What is the frequency range of the AC signal (e.g. 10Hz - 100Hz)? What is the peak to peak amplitude range of the AC signal (e.g. 10mv - 1V)? What is the maximum acceptable error (e.g. 0.1%, 1% etc)? What is the minimum RMS update rate that is acceptable (e.g. 0.1sec, 1sec, etc)? What is the ambient operating temperature range? Maximum size? Would a cheap Arduino solution be acceptable? Regards, Jim
$30 USD 在2天之内
5.0 (28条评论)
5.1
5.1
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Hello! How are you? Thank you for sharing this project. I am a senior engineer skilled at hardware design and firmware. I have done a familiar project using stm32 and PIC. I can give you perfect service and will respect all of your needs. Look forward to hearing from you. Best Regards.
$200 USD 在5天之内
5.0 (7条评论)
4.9
4.9
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Hello, Hope this message finds you well, I checked your details and I believe that my experience is what you are looking 4. I have been working on similar projects for the past 8 years, and I have the essential skills including; Electronics Microcontroller Electrical Engineering PCB Layout Arduino I will prove to be of great help to you. SEND MESSAGE/CHAT, so that we can discuss more on the details including budget and deadlines… I have not been online on freelancer for sometime, Covid came with all its inconveniences but am happy to be back doing what I love most Regards, BrainCenter Inc
$250 USD 在7天之内
4.4 (14条评论)
4.6
4.6
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Hello. Thanks for posting your project about 12-bit true RMS voltage to digital conversion. Please find below a summary of my proposal. SCOPE OF THE WORK: I have designed voltage and current meters for embedded applications. Have experience with AC electronics (Fence chargers, flyback converters, etc.) Can work use a Microchip CPU, with isolated I2C slave port and simple, custom data format. The board will be designed following good practices to guarantee a safe, reliable operation DELIVERABLES: - Circuit diagram (.PDF) - PCB manufacturing files (Gerber, pick & place, drill list, testpoints, etc.) - Bill of parts (.XLSX) with 3 vendor codes per part - Prototype tested and shipped to your location. - Source code and firmware image (.HEX) - Documentation including electrical specs, pinout description and operation guide. - 3D Render images of the board PRICE: PCB Design: $ 148 Firmware: $ 99 Prototype: $ 315 ETA: PCB Design: 4 work days Firmware: 2 work days Prototype: 32 days BACKGROUND: 11+ years of experience in hardware design, including: - Circuit design and simulation (Altium Designer) - PCB layout design, high-speed and multilayer boards - Managing PCB manufacturing, assembly, prototyping and global shipping - Programming in C, C++, Arduino, Python, Pytorch Please check my portfolio with examples of past jobs. Hoping it will meet your requirements. Looking forward to helping you with this project. --- Best Regards, Gonzalo Perez, EE GPD Electronics
$148 USD 在4天之内
5.0 (1条评论)
3.6
3.6
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Hello, My proposal is based on the popular MSP430 from Texas instruments. It is ultra low power and very cheap MCU. Your AC current is converted to the voltage by the 100 ohm resistors. I will add some op-amp stages for a little amplification, buffering and floating to single ended conversion. Then the voltage goes to ADC port of MSP430. I think 12 bit resolution will be more than enough for your work. The software must be written to calculate the true RMS in real-time. Here you need a little tradeoff between response time and accuracy (moving window). After calculating the RMS the data will go in real-time to I2C port. I believe MSP4302619 has all the requirements for your project. Anyway, I am a professional embedded system designer and can do your project as I briefly described above. Thanks.
$550 USD 在7天之内
5.0 (2条评论)
3.2
3.2
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Hi I hope you will be fine I have done Mphil in Physics. My specialization is in Electronics in my graduate program and have a strong grip over it. Moreover I have done multiple projects, coding and lab reports related to the Arduino i.e Arduino based wheelchair for blinds Arduino based fire alarm Arduino based robotic guitar I can assist you in this project I think we should talk together so I understand your needs more concretely and you understand my skills better. Regards Talha
$250 USD 在7天之内
5.0 (1条评论)
2.5
2.5
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Hello. what is the mean of i2c(3pins)? I am interest in this job. -------------------------------------------------------- Best regards.
$140 USD 在7天之内
5.0 (2条评论)
2.1
2.1
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Hello,I have built numerous CT current measurement devices , specifically AC current I used the cheap pic16f876 for AC current measurement of up to 100A and range can be increased based on the CT used . I will provide all files which includes PCB and firmware. I am available for further discussions.
$180 USD 在5天之内
0.0 (0条评论)
0.0
0.0
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Hi, I saw your all detail and i understand the project because i did many times in my university life, Please discuss more on chat, I can start immediately and i will do within 1-2 days max. Thankyou
$140 USD 在2天之内
0.0 (0条评论)
0.0
0.0
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Hello, I am an electronic engineer with more than two years of experience in hardware and software design and development.
$100 USD 在7天之内
0.0 (0条评论)
0.0
0.0
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Hi, we are a small team of electrical engineers with a combined 10+ years of experience in the field of electrical and software engineering. We have microcontroller and C coding experience and think we can help you with your project. We have read your requirements and have a general understanding of your requirements, but would like to discuss some details in greater depth. Specifically, what is the frequency of the ac signal to be read, and how often would you like to sample the signal? Once we have a better understanding of the requirements we can give you a more accurate bid.
$1,350 USD 在7天之内
0.0 (0条评论)
0.0
0.0

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UNITED STATES的国旗
Cheektowaga, United States
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