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Esp32 +sim800 simple firmware

$30-250 USD

クローズ
投稿日: 5年以上前

$30-250 USD

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make a simple firmware for a gsm pcb board to switch on/off a motor when it receive a call from authorized numbers. the commands required: 1. Add a number 2. delete a number 3. report the registered numbers 4. change password 5. the board has wifi built in, so need to enable the firmware installation and update via wifi as well
プロジェクト ID: 17501375

プロジェクトについて

20個の提案
リモートプロジェクト
アクティブ 6年前

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この仕事に20人のフリーランサーが、平均$179 USDで入札しています
ユーザーアバター
Hi, Both modules I have worked and have experience. I cand design electronic board and develope firmware. All the BEST, Ali SERBETCI
$250 USD 7日以内
5.0 (40 レビュー)
7.5
7.5
ユーザーアバター
Hello my name is Maria, I would like to work in this project, I’m an engineer with plenty of experience working with Arduino, Electrical Engineering, Electronics, Microcontroller, PCB Layout , I have made many works with fimwares , so I am sure I can do a good work for you. Good communication with my clients it is a top priority for me. If you have any doubt or want to see more of my work I’ll be here. Contact me for more info.
$177 USD 3日以内
5.0 (25 レビュー)
7.4
7.4
ユーザーアバター
Hi, I hope you are doing well. I have experience with ESP32 and SIM800L Programming and interface. I have understood your project requirements which are - To Control Motor using Call - Number Authorization and Registration. I have understood your requirements and I have hardware available for quick prototyping and testing. Looking Forward, Khawaja
$250 USD 3日以内
4.8 (92 レビュー)
7.2
7.2
ユーザーアバター
hi, chat with me to discuss the details. best regards M. Shahid
$250 USD 7日以内
5.0 (10 レビュー)
6.3
6.3
ユーザーアバター
Hello. I have made similar works before and can do it for you. Я делал похожие проекты ранее (удаленное управление EPS8266 через веб-интерфейс по WiFi +управление по SMS или DTMF-кодами c помощью SIM800).
$150 USD 7日以内
4.9 (111 レビュー)
6.0
6.0
ユーザーアバター
hello i am a computer engineer,i am having masters in computer engineering,i have more than 7 years of experience in arduino and electronics,i have implemented this device before to open electrical lock for a local customer here
$131 USD 1日以内
5.0 (41 レビュー)
5.8
5.8
ユーザーアバター
My proposal is: - ESP32 display a WiFi AP point. Originally, no password for this AP. - A web server, include HTML5, JavaScript are developed to make UI for user. User can: 1. Add/delete a authorized number. Also view a list of added numbers. 2. Set the AP password (or change it) 3. Upload a new firmware - Once ESP32 detect a call from SIM800L, if the # is in the authorized list, it will trigger a GPIO to start the motor. My question: Which MOSFET are you using to control the motor? Q3 or Q4? Anyway, your hardware design does not look normal. The N-MOSFET should be on the low side with S pin connected to GND to be able to directly control by the ESP32 but it is NOT in your schematic. Also, a small resistor is required between GPIO and G pin of MOSFET to limit the current when the Cgs of MOSFET is charged. A good design usually put a large Rgs resistor to ensure it is completely OFF too. I don't check other place but definitely, your hardware is very abnormal. Ah, with motor (mostly inductive load), a protection diode is important as well. If you have any question, pls let me know. My bid just for software development only. Thanks, Anh
$250 USD 7日以内
4.9 (26 レビュー)
5.4
5.4
ユーザーアバター
Sir, I have read your requirements and would like to inform you that i can easily handle your task also i have some sample projects to show you my work please ping me to get started with a discussion
$200 USD 3日以内
4.1 (21 レビュー)
3.4
3.4
ユーザーアバター
Hello! I read your project description and I interested to work with your project. I have all hardware for your project. I have experience of making arduino and electronics projects. Look forward to your answer. Best regards.
$100 USD 7日以内
5.0 (5 レビュー)
2.6
2.6
ユーザーアバター
I am having 5 years experiance in the field of wireless communication using sim800 and embedded Electronics. So it is easy for me
$111 USD 3日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
Good day, I have the experience with arduino IDE, esp32, esp 8266, sim 800 and sim 900 before. If you choice me, we will make your project be true. Best regards
$222 USD 3日以内
0.0 (0 レビュー)
0.0
0.0

クライアントについて

UKRAINEのフラグ
Kharkiv, Ukraine
5.0
71
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メンバー登録日:11月 3, 2017

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