login
bidrohini
-
Posts
62 -
Joined
-
Last visited
-
Days Won
4
Content Type
Profiles
Forums
Events
Posts posted by bidrohini
-
-
Hello, which current sensor did you use in this project?
-
It is always good to make a design and use simulation software. Like proteus. This will give you an idea of how your circuit will behave in real life. Then you can proceed to the hardware implementation.
-
Thanks a lot. Power supply design always looks challenging to me. Even the ready-made Power supplies like Baku, Koccu etc. fail after a few days. Hopefully, I will follow this design someday.
-
3 minutes ago, Walid Issa said:
It is DC consuming 1.2A
I see. The board supports DC loads only, right?
-
I can see that you directly connected a lightbulb to the board. Is that an AC bulb or DC?
-
For IoT projects I use the free version of BLYNK 2. Is home assistance free or paid? Does it support only Raspberry Pi or ESP8266/32 also?
-
I think it will be much easier if you switch to Arduino. You will need to connect the PIR output to a digital pin. You will also need to conenct the LDR to an analog pin of the Arduino. By using the digitalRead and analogRead functions you can read the PIR and LDR sensor outputs. Then you can connect to the Arduino and turn on a relay/led/buzzer whatever you wish to control.
https://www.theengineeringprojects.com/2017/08/pir-sensor-arduino-interfacing.html
https://www.hackster.io/electronicsfan123/interfacing-arduino-uno-with-ldr-8760ba
-
Thanks for sharing. The range sounds good.
-
Great product. Personally, I never used the VL53L0X sensor. But I find it very interesting and useful. The PCB looks neat too. Did you get the PCB from https://www.pcbway.com ? Or somewhere else?
-
Very simple but useful project. I was just wondering, have you made any PCB of this project? You can make a prototype by yourself or get it printed from:
-
Hello,
I am interested in Machine learning projects nowadays. This shopping cart looks very cool to me.
I can see a Lattepanda has been used here. I wanna know if it is possible to use any STM32 board instead of Lattepanda for this project.
Thanks a advance.
-
Hi, have you tested it by yourself?
-
On 2/23/2023 at 2:56 AM, HarryA said:
That is most likely an internal factory number. Remember they do not want you to repair them but to buy new ones. There are a number of videos on youtube in regard to chargers. Search on " Black&Decker 18V Li-ion charger "
for example: https://www.youtube.com/watch?v=c-pTziUV1as
I think you are right. Because I never came across such a strange marking on ICs before.
-
Thanks for sharing the design and the video. I came across this design and found it good too:
https://www.pcbway.com/project/shareproject/power_supply_0_30V_2mA_3A_version2_28ca8ff0.html
But your power supply has a bigger voltage and current rating I can see.
-
On 11/1/2022 at 1:59 AM, loribennms said:
I didn't know where to put this so, what the heck? I put it here. Is there any reasonably- priced USB cable tester out there? Over time, I have accumulated a lot of USB cables: A, B, Mini-B and C. Some of them came with wall warts and are very possibly charge only, with no data capability but they've gotten mixed up with all the others. Most of mine are A (2.0 & 3.0) to mini-B. My band has a cable tester that does practically all types of audio cables but I've failed to find anything that tests USB, Is there such a thing that doesn't require a bank loan?
You can take a look at the Klein Tools VDV512-101 Cable Tester.
-
The LEDs are 12V LEDs, right? If you use a 9V battery, I think the LEDs will not turn on properly. You may just see a faint glow.
-
2 hours ago, erinxie said:
Thanks! I have fixed this problem
I just follow this article to do the design, here it is: Design of LM386-based Audio Amplifier Circuit 2022
Good to know that you got it working.
-
On 2/17/2023 at 10:14 PM, loribennms said:
I used Lm386 as an audio amplifier, 9V , and when I check the output waveform it amplifies but it was clipped. I just copied the circuit diagram on its datasheet. How to fix this? Any advice there in making an audio amplifier with good sound quality ?
You can add a decoupling capacitor. Sometimes, the output waveform can be clipped due to noise in the power supply. Adding a decoupling capacitor between the power supply and the ground can help reduce the noise and improve the output waveform.
-
I think it's not possible to give a good answer without knowing which specific DXP softaware you're using and what error you're facing.
-
Bypassing the Hall sensor is not recommended. You can check the manual for instructions on how to calibrate the sensor.
-
For making a holo projector, you can follow this video:
You can also take a look here to know how to install an outdoor projector:
https://www.theengineeringprojects.com/2018/09/how-to-install-outdoor-projector.html
Y
-
Music ICs like UM66 are avaiable. However, you cannot customize them. UM66 can play only the music that is already set by the manufacturer. If you want to play something of your own choice, I think you can move to Arduino related projects. Using waveshare VS1053B music shield.
https://www.waveshare.com/wiki/Music_Shield
Here is another music playing PCB based on Arduino Nano that you may like to see:
https://www.pcbway.com/project/shareproject/Musical_Christmas_Reindeer_0cf8bc23.html
-
Good to know that it is working. I always used to bootload Atmega328P with a full fledged Arduino UNO board. Then I added the necessary crystal oscillator, capacitors and resistors along with the chip to the breadboard. Finally, I connected an FTDI module to upload code to the Atmega328P from my laptop.
-
I really like this circuit. Such a small and compact PCB.
Siren Sound | Bird Sound | Tone generator using 555 timer
in Electronic Projects Design/Ideas
Posted
Thanks for sharing. For such projects, I always used ready-made sound modules. I didn't really think it was possible to make one by myself.