| Discussion Title | Created date |
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Active supercapacitor balancing for shortterm UPS Hi, i am designing short term (>60sec of backup) UPS circuit based on supercapacitors for my low power i3 intel computer (12V, 5W). All i need is to provide safe turn off for... |
Monday, 28 March 2022 - 09:34 |
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Noisy earth connection Hi, i am embedded electronics developer and my company recently moved to a new location. Here we rent a floor in multi store building and the owners has 9x 20kW... |
Tuesday, 22 March 2022 - 13:42 |
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VCC and analog VCC differences Hi, i am making custom board with ATSAMD21G18 and so far, i have around 50 final products sold and all the feedbacks are great. Now i am preparing 2nd gen of PCB and i wish... |
Tuesday, 22 June 2021 - 10:35 |
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Cant get sensor to return ACK on I2C Hi, i am trying to get STM32F301K8 to communicate with VL6180V1 ToF sensor on my custom board, via I2C (at 20kHz) I had problem getting the API to work so i tried low level I2C... |
Monday, 14 June 2021 - 13:56 |
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Reading 5V polarizing output Hi, i have a 5V powered keypad and keylock set. When you enter the correct password in keypad, it then either locks or unlocks the lock, by applying 5V in one direction or... |
Monday, 17 May 2021 - 13:22 |
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LCD burn in prevention Hello, i designed a product that includes an 2.4 TFT LCD (dt022ctft) and now i have approximately 50 to 60 products in the field for about a year and a half and on some of... |
Thursday, 7 January 2021 - 12:12 |
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Slowing dow nAc motor in a fan Hi, i have one of those classic white fans on stand for room. It has 3 speeds, but they are all waaaay to fast and now im thinking about how to reduce speed of the motor... |
Monday, 1 June 2020 - 08:30 |
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ADUM1250 bi-dir isolator Hi, i have an eeprom on my PCB that i wished to additionally protect, so i put it in isolated circuit. So i added a isoalted DC/DC 3.3V to 3.3V converter (1W), and a... |
Monday, 11 May 2020 - 08:25 |
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Where to find RGBWW bulbs Hio, im making some light decoration for my home and outsides and i am trying to be "fancy" and "over complicate" things, like a true engineer. So i am looking for a... |
Wednesday, 6 May 2020 - 08:32 |
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Manual pick/palce machine for under 1000€ Hello, i am looking for a manual pick/place machine for under or around 1000€, preferably sold in EU. Only one i found that looks nice at this price range is ... |
Friday, 24 April 2020 - 10:43 |
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Circuit breaker switch extender Hi, i am looking for small metal rod that extends switch on the circuit breaker and i dont know how is it called in English. I marked exactly what i mean on the attached... |
Monday, 6 April 2020 - 10:13 |
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Measuring 230V AC current (contact-less) with 5V AVR Hello, i need to measure current(power) on a 230V AC power line, without soldering anything onto the line itself. The power draw is from 10 to 100W so lets say max 0,... |
Thursday, 12 March 2020 - 11:33 |