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Budget: 5000 UAH Deadline: 20 days
Good day! I have a lot of experience with Arduino. I work with her every day. If my candidacy is interesting, we can talk in more detail about your project.
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Proposals concealed
The list does not show proposals concealed by the client or freelancer with a Plus profile, as well as proposals violating rules
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Volodimir S. 2 July 2019размеры?
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Valerii Danko
2 July 2019
Размеры самой установки (без учета теплообменника) примерно 1500х1000х1000 .
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Vyacheslav Azarov 2 July 2019Сколько?
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Sergei Om 2 July 2019Каков вес коллектора? Выбраны ли шаговые двигатели для его позиционирования? Если да - то какого типа? Каков тип (и мощность) двигателя насоса? Количество и тип датчиков (если уже выбраны)?
В дополнение к грубому расчету местоположения солнца целесообразно дополнить систему датчиком, отслеживающим его положение (треккер положения солнца) и ориентировать коллектор по их показаниям.
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Valerii Danko
2 July 2019
Вес около 10 кг, ШД планирую использовать типа NEMA23 и 17.
Датчики есть, но сейчас нет под рукой сказать какие именно (точно знаю, что ардуино их понимает) . По типу это датчики температуры и протока. Возможно еще будут добавлены датчики дождя и освещенности.
Солнечный трекер не подойдет - фокус смещен с оси "зеркала-солнце" и наклон зеркал должен отслеживать половину угла склонения, а не 1 к 1. Грубый расчет не подойдет, нужна точность (ошибка расчета не более 0,5 градуса).
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Vyacheslav Azarov 3 July 2019
Что здечь обсуждают? Такой? https://create.arduino.cc/projecthub/Maya/in-servo-we-trust-6725f1?ref=search&ref_id=triangle&offset=4 Или такой? https://russian.alibaba.com/product-detail/csp-parabolic-dish-type-solar-thermal-concentrator-60513684588.html?spm=a2700.8699010.normalList.7.5e5d46d8FyvRak
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Valerii Danko
3 July 2019
Ни то, ни другое. Ближе к первому варианту, только зеркала не поодиночке позиционируются, а группой.
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Vyacheslav Azarov 3 July 2019
Спасибо.
Current freelance projects in the category Embedded Systems & Microcontrollers
603 USD
0 proposals
The goal of the project is to create two devices that will communicate with each other via cable (485). 1) The first device is a metal casing with connectors, it is a switching block with 16 relays + Ebyte-400M2213S which will check for the presence of a signal at specified frequencies. 2) This is a control panel on esp32 mcu2.8 smart display. Its purpose is to control the load and receive data from the switching block about the presence of a signal at specified frequencies. A specialist or specialists are needed who have experience in such work. Circuit design and programming. All technical resources will be provided. We discuss the project, possible changes, etc... and we work.
Not specified
5 proposals
Development of a Flight Controller for Fixed-Wing UAVs An experienced Embedded Hardware Engineer is needed to develop a flight controller for fixed-wing UAVs. Tasks: develop the electrical schematic; design a multilayer PCB; select the component base; prepare Gerber, BOM, and Pick&Place for mass production. Main requirements: microcontroller STM32H743 or equivalent class; functionality similar to Matek H743-Wing V3 (without copying); compatibility with PX4 or ArduPilot; interfaces: CAN, UART, SPI, I2C, USB, PWM; support for connecting GPS, IMU, barometer, telemetry, and other peripherals; maximum use of components that meet NDAA requirements (without using Chinese components where possible). Mandatory when responding: describe your experience in developing Flight Controllers or other Embedded platforms; provide examples of completed projects; indicate which CAD systems you use (Altium, KiCad, etc.); specify estimated timelines and costs for completion. Preference will be given to contractors with experience in developing electronics for UAVs, robotics, or avionics.
Not specified
6 proposals
There is a board with esp32, sim800l, mini 560pro 5v. It has two pulse inputs (coin, bill). 1. A 6-pin connector (mdb) needs to be made. 2. Integrate power into the board, it can be replaced with ti, Pololu D24V5F3 6-30V 3.3V / 1.5A, as a choice or integrate the existing module into the board. 3. Replace sim 800l with another module (the pins fit, but differ in places). Gerber files are available, there are no schematics, base jlpcb.
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