You will blow your esp if you try and power a mechanical relay from a gpio. They are like 20-50ma max rated and relays are over double that when actuated. You always power it from the esp input voltage (power supply) 3.3 or 5v. NEVER FROM THE BOARD ITSELF. Reason why people use machnical ones is most likely because they are half the price usually and while at it can usually handle way way more Amps than the solid state one.
Is there a way to identify a UART signal coming from a mobile app via bluetooth, being sent to a Bluetooth dongle attached to a device receiving the signal? How could I identify or replicate the signal?
Thanks for your video, it is very helpful. The motor pump was blocking the machine from normal start. But in my case, I opened the pump and found a piece of dust blocking the fan from spining. I tested the motor with a 24v power supply and worked like a sharme. My CO2 Laser machine is working fine now without replacing anything. Thanks again my friend.
Yeah, the switches go bad all the time. They get a beating. The last microwave had a bad, small control transformer. A winding was open. Impossible to find this part. I got my Dremmel out and separated the laminations and rewound the burned coil. Worked OK but hummed a lot because I disturbed the laminations and couldn't weld them back properly. The ones that get thrown out are usually so filthy I don't want to touch them but can probably be repaired with just a switch replacement.
Thank you so much. I spent hours looking on freecad forum for how to do this and they are all going on about linux code and add ons and stuff. I was convinced that there must be an easy way. Thank you so much!
It is very nice explanation on all calculation and useful. do you have a template to do all calculations by inputs all necessary parameters? I like to get a copy if possible
Has anybody contacted the manufacturer to find out if it’s a recall on the battery or a defect? I mean $25 ain’t that much but if it’s a defect they should replace it. Yes, before I am cheap😂
Just got a used DS1102D. Im a complete dummy on oscilloscopes. I know this equipment can help me repair TV's and other electronics. Of all the you tube sites and help sites yours is the best that I came across. You've helped me have a better understanding of the equipment and how to set it up for the first time. Thank You
so when a company like espressif makes their mcu and its flashed using uart, is there a standart for bits that would represent "start" "stop" "acknowledge" etc, or is that purely determined by the product manufacturer?
when I install my xctu software as in when I do the installation process the software says multiple problems have occurred. error while performing force updates: 504 command not implemented for that parameter. checking for radio firmware library updates. checking for force firmware updates. how to fix this issue
Sir, I am trying to receive gps data each second using interrupt function.What I understood is that,I had enabled the global interrupt in stm32 configuration for uart3, and whenever the interrupt triggers,the programs goes to the callback function which is hal_uart_rxcpltcallback.The program reaches the function..I do some processing again and then enable the interrupt again..The next sexond when the data arrives at 100ms after a pps signal(reference signal marked for 1 second),again interrupt is triggered , program goes to callback function, does the particular function, comes out of callback function.This happens in every 100th -130th millisecond of each second.I understood that whenever the codes enters the callback, ,the interrupt is diabled and we need to enable the interrupt again to receive the next data..Altogether 300bytes of data arrives from 100 to 130milliseconds..After 130 milisecond,if suppose some random data arrives, the interrupt may still trigger, since each time i enable the interrupt while coming out of callback function..how to stop receing the interrupt after 300millisecond? Can i use abort function?? Also can you please explain What is the differnce between isr function and callback function??Looking forward for your reply
Once you change the z offset, what happens if you move the printer and the height of the bed changes say a levelling knob loosens a bit. Do you have to do that whole z setup every time? Is there a way to fix the bed so it’s true self levelling?
Does the load cell need to be mounted between 2 plates like that or can I design something where I have it mounted on one side to a table and the other side has an attachment to see how much force is required to pull an object through a hole?
..who say UART is no good for wireless communication ...check hc-12 with baud controlled clock...simply Serial.write(var,sizeof(var); to tx...last bit (10th bit) always HIGH
Hello👋, @Continuous Load YTchannel.. Thank you So much for sahring valuable information...👌 It's very helpful to easy and real understading of UART Protocol... way of explaining and output showing on Digital oscilloscope.
Bless you, bless you. This got me functioning for klipper. If it helps anyone, on my CR-10 S5 V2.2 board this works with the video's modifications: [bltouch] sensor_pin: PD3 control_pin: PB5 pin_move_time: 0.9 x_offset: -46 y_offset: -5
