Two irons. I used two irons to remove LED's from my light. Then replaced them with LED's I got from China. SMD LED's are determined by the dimensions of the LED. Soldering on was easy, first clean the pads with wic and liquid flux. Clean with denatured alcohol. Use one iron, sharp tip, liquid flux and flow one side of the LED at a time.

Great video! How to use this module but in such a way that it takes the smallest space possible. The module being small has an advantage which is negated by the board it has to be on. Any way to trim it down?

Hi. Do you provide a circuit diagram of your project?

What's is the zener value beside 10 v 100mf

Can you please also try connecting it to the things network

Can the RYLR993 also connect to the things network?

good video but i want to know how to transmitt ir using ESPhome too

Great job. Flasher circuit will be interesting to see.

You must have found that in the attic or basement that is definitely older than 20 years. Once again you managed to get new life into it.

Nice! Modernized and useful. Classic design that is not going to a landfill.

How can i fix my omega portable speaker that when i switch it on theres no sound but only power on light?

Hello! Good morning! Is it possible to let us know what kind of XIAO seeed did you use? Is it nRF52840 Sense or nRF52840? Because I believe they are two different version.

Hi. What kind of XIAO seeed did you use? nRF52840 Sense or just nRF52840? Because there are two versions of it.

Is it possible to insert two temperature limits (upper and lower) in the code?

Hi. May I ask if the code is compiled already, is it 100% sure it will work?

I have a Bluetooth speaker, but switch off even turn switch on, it turn off by itself. Any idea why this is happening??

Very interesting, need some help from you.

can i use it to transmit data from several sensors at once? such as water debit monitoring

Hello friend, I don't know much English, but I will try to explain my problem: , I tried to change the battery of a 14.4 v drill to lithium, I used recycled 18650 batteries (obviously tested and with the same voltage) and formed a 4s2p pack and bought 4s bms boards at 40 amps (balancer type), and on three occasions the plates did not withstand even a vacuum test: (without effort) I thought it would be a defect in the board but I ordered from another store and now that I tried a new one and did a vacuum test performance, suddenly I heard a small explosion, I ignored it and continued drilling, until I heard a second one so I assumed that something had happened in the BMS and yes, a mosfet exploded and the truth is physically you can't see anything else but I think that more than one component must have been damaged as well. In your videos it looks so simple (and it really is, it's not very scientific) and this is happening to me, I only did a vacuum test on the other boards and apparently the transistors that are responsible for balancing the cells are heating up too much ( one or two, not all) and when I load them with the imax6 I get "connection break". Can you explain to me what I'm doing wrong or what causes could cause this to happen or at least what should I do? I thank you in advance.P.S: There are more details to explain but I didn't want to go on too long, if you need more details let me know

What's the issue of replacing capacitor without testing whether it got its capitance?

Hi. Can I use this in a cooling system? Do i need to change some things in your code or is it still the same?

Thank you !

Lo hice hace dos años y Zigbee2mqtt. Pero solo dura 1 semana la batería con 2x18650

The pins from the NodeMCU to LoRa are also crossed right? TX from NodeMCU to RX on LoRa and RX of NodeMCU to TX of LoRa.

Hi, it is a nice video. I want to reset my DVR with the same Model: DHI-XVR5108C There is no reset button, would you know which pins to bridge to reset it? Thanks in advance.

Sir I have change the pin configuration in the code and now the serial monitor displays @GSTP, @GSOP 1 1000 0, @GNS 7, @GSR. It displays these continuously. What does it mean and what should I do?

You are going against Nature. Powerfix/Parkside products are supposed to be easily broken and remain that way (no replacement parts available). That is why the quality is so low to begin with

Sir, I just connected everything and the aduino ide says "no GPS detected: check wiring". I think this is because of the voltage from NodeMCU to the GPS module. I measured the voltage and it gave me 1.65V from NodeMCU to the GPS passing through the logic level shifter. Could it be that the problem is because I used a 3.3k resistor instead of a 3.6k resistor? V = IR, does this means the higher the resistance, the higher the voltage?

Sir, I have soldered, the input of the GPS module to the Vin pin of the NodeMCU but the GPS module is still not powered on. What should I do? When I power the GPS module separately through USB, it comes on.

Thanks for the tutorial sir 👍, please can use it to interface Esp32 3.3v with RS485 module, 5v sensor

That speaker was infact a mess 😮

thanks :)

Hello Sir, the jumper wires don't fit well in the gps evaluation pins. How did you fit the wires in please? Or you have to solder the wires to the pins in the evaluation board so that it can be firm?

Hello Sir, please looking at the LoraToAPP.ino, I am a little confused on the pin (VDD, RXD, RXD and GND) connection of the LoRa to the NodeMCU. I fine it difficult to understand to which pims if the NodeMCU, are those 4 LoRa pims connected to. Please kindly clarify me with this connection. Thank you

I don't see those as problems. But it's output voltage comes with lot of noise, like it is impossible to use in certain circuits. I used it to power a meter but meter is not working due to its noise.

Same happened to me

Those are analog devices. For the same price, you can buy BS312 with digital output. Or the BS412 also has adjustable timing. You have to buy the lenses separately.

use an amplifier my man

Does the water valve in this project require mains water pressure to operate or will it work properly with just gravity pressure?

How battery hungry are these chips? For wireless?

The first time I just read about these chips is today and I have a great idea for this technology

Great content, I'll be using this as a basis for my emergency contact device. Thanks Other ideas for expanded functionality 1) Ability to automatically 'pick up' the call from the caregiver to speak to the elderly person 2) Watchdog/automated text to let the caregiver know the system is still functional (maybe once a week)

Does the TOF laser sensor also work outside ? For example, can the sensor be protected from splashing water e.g. by a glass pane or does a pane interfere with the measurement? I want to build a Distance Sensor for a boat which gives an alarm when getting close to the pier.

I heard that as Butter management system

I've had exactly the same setup for pellets measuring - at first I've had ultrasonic module, and i can say that it's quite unreliable. I've had to use all sorts of filters to eliminate false empty or/and false full readings to achieve sort-of acceptable result. This winter i replaced it with this laser sensor and it's way better. More accurate, and absolutely no false readings. I have only basic median filter (only to eliminate very small deviations) in esphome and results are perfect. However, my strong advice: GET IR PROTECTION for this sensor! I've had it without it and had to remove and blow it with air two or three times during winter to correctly read again because of dust. Later i added protection and problems are gone - i only wipe it out occasionally. There are original protections available for this sensor, or you can get sensor with this glass already installed. a

Thanks for the tutorial, really handy. But one noob question: do you have to wire the bulb to the hot wire or it doesn't matter?

I suggest replacing the caps with Rubycon or Nikkon Chemicon caps, of the highest termperature rating you can find. It'll be worth it in the long run. No-name chinese capacitors are the reason the lights failed in the first place.

ive been lookong for a laser sensor for mwasuring tiny distances, i thought it would be the way forward (its for a blade alignment sensor for my bandsaw, it needs 3 points of reference along the blade) i thought lasers might be available but i cant find any high res/small distance ones for less than 3500. i need micrometer accuracy i guess. i had pondered taking apart some optical mice and using the sensors in those somehow, theyre fairly accurate. but i need a measure to tie them to. i fail at programming 😂