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AT89S52 based digital clock Repairing

₹750-1250 INR / hour

クローズ
投稿日: 8年以上前

₹750-1250 INR / hour

I am having a digital clock with AT89S52, ULN2803, 2N 6107 and Seven Segment LED display. I am not able to get the collector voltage at 2N6107 PNP transistor and because of this my seven segment VCC is not able to get the voltage and so Seven segment is not getting power on. base voltage is 13V at 2N 6107. Microcontroller and ULN IC, 2N6107 are ok because I have replaced them with the new one
プロジェクト ID: 8748040

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 8年前

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20 freelancers are bidding on average ₹2,859 INR/時間 for this job
ユーザーアバター
hi i am an electrical engineer. i have strong skill set related to embedded system and circuit design. i have worked on many embedded systems. i can do this project for you. let me know if you are interested and we will discuss the details.
₹1,111 INR 3日以内
4.8 (30 レビュー)
6.3
6.3
ユーザーアバター
=========== ELECTRONICS =========== I have experience on Analog for 30 and Digital for 20 years. By using micro controller on any type of device including firmware and windows software. Basically designer and manufacturer of Analog and Digital Electronics Product extremely my self with no other third party or company. Experienced on RF communication both Analog and Digital data transmission. See my profile for more detail. Specially educated on AT8952 controller to do every thing in digital electronics.
₹750 INR 7日以内
5.0 (12 レビュー)
5.6
5.6
ユーザーアバター
Hello, Deep Kapadia here from India. Basically i am Embedded System Developer. I have one year of experience in Embedded Development. I have worked with STM32F4, TIVA C from Texas Instruments, 8051, ATmega8-16-32, Arduino, etc. Microcontrollers. Particularly with Arduino, i have experience with RTC, 7-seg LED, LCD, WiFi, Bluetooth, Various Motors(DC, Servo, Stepper), RF, Various Sensors(Flex , IR, Ultrasonic, Temp, Humidity),. I can do this for you. Thank you, Deep Kapadia
₹750 INR 5日以内
4.9 (14 レビュー)
4.0
4.0
ユーザーアバター
i have a good knowledge about microcontroller programming and have done number of projects using AT89S52. i will also work with seven segment LED display ,i will do your work easily and accurately.
₹1,000 INR 3日以内
5.0 (7 レビュー)
2.0
2.0
ユーザーアバター
Bir öneri henüz sağlanmadı
₹750 INR 10日以内
5.0 (1 レビュー)
0.5
0.5
ユーザーアバター
I have excellent experience in micro controllers and circuit design. Specially i am good at troubleshooting so I think i am the best person for this project.
₹750 INR 10日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
Embedded expert at your disposal, I know Board Level Debugging.
₹1,111 INR 5日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
Hello! Do you have a scheme? Is this a new device or not? Did this device work ever? I think I can help you. Please? I need more information (scheme etc.). I have expirience with programming AT89S52.
₹833 INR 3日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
A proposal has not yet been provided
₹33,333 INR 10日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
Hello. I have been working with microcontrollers for years and I know them very well. I like to use Proteus because I think it is one of the best environments to work on. I know how frustating can be when the circuits don't work as we want them to, so I am here to help you with your issue. I have done these digital clocks several times, so I know what I am talking about. If you decide to accept this offer, don't hesitate to contact me so we can talk about this project and start right away to get it done as soon as possible. Best regards. David Nery
₹1,111 INR 14日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
A proposal has not yet been provided
₹750 INR 8日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
Please provide problem's info
₹1,944 INR 3日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
A proposal has not yet been provided
₹800 INR 3日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
Hi, I have about 9 years of experience in various circuit design and PCB development. I would propose to have a look at the circuit diagrams to see if there is any fault. If there is no fault it might be required to inspect the PCB layout.
₹1,222 INR 4日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
A proposal has not yet been provided
₹5,555 INR 10日以内
0.0 (0 レビュー)
0.0
0.0

クライアントについて

INDIAのフラグ
Ahmedabad, India
0.0
0
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メンバー登録日:7月 15, 2014

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