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problem with connecting BEOK WiFi thermostat to smartphone
Hi, I'm trying to test this WiFi AC2 BEOK thermostat. I want to connect it to my smartphone. I downloaded the mention app in this manual and I'm doing the steps as mentioned...
Sunday, 19 June 2022 - 11:00
problem with BS818 and TS04 capacitive touch sensors
hi I'm working on a 12 key capacitive touch keypad that uses BS818 for 8 of the keys and TS04 for the rest. my problem is that when i use a 3 mm light guide on top of the touch...
Monday, 16 May 2022 - 09:47
providing supply voltage for AT070TN92 LCD
hi, I need to generate these dc voltages  -7, 16,10.4, 3.3, for the power supply of this LCD AT070TN92 and all of them should be from a 5-volt dc power supply. I designed a...
Tuesday, 18 May 2021 - 07:11
question about using nrf24L01 for a digital wireless thermometer
hi! I want to produce a commercial digital wireless thermometer for domestic use. I want to use AVR and I want to use 3A batteries for the power supply.  Is...
Thursday, 25 March 2021 - 11:17
problem with Hartley oscillator
hi, i designed a low-frequency hartley oscillator, and it is working well in multisim simulation but when I test the circuit on the breadboard it doesn't work and the oscilloscope...
Saturday, 16 January 2021 - 08:51
question about implementing ad698 for lvdt with microcontroller
Hi, I'm trying to design a digital rain meter out of a mechanical one (I attached the picture and a video of that). In order to do that, I should measure the distance that...
Sunday, 10 January 2021 - 20:45
problem with touch key using ttp223
Hi, I have designed a simple 4 pole touch key using ttp223 and modified it a couple of times. I encountered a problem using the final version of it. most of the time it works fine...
Thursday, 26 November 2020 - 18:13
problem with sim800L
hi i have a problem with my sim800L module . i connected a 4 volt battery for the supply and i know that it connects to network due to the fact that the network led blinks every 4...
Sunday, 8 November 2020 - 22:36
advice about infrared touch
I want to build an infrared 4 pole touch key. I know that I should place receivers and transmitters on opposite sides that means 8 sensors. here are my questions  1-...
Saturday, 29 August 2020 - 11:10
problem with touch key using ttp223
hi, I designed a simple 4 pole touch key using ttp223 IC. I encountered two problems when using it. sometimes when I touch a key, another random key switches. and sometimes...
Thursday, 27 August 2020 - 12:32