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Esp8266 with robotdym dimmee
Hi i want to connect my esp8266 to my dimmer, but i have a big problem.
I have connect only ground with the dimmer and now i cant boot/restart the Esp and upload too from USB.
I disconnect everything and nothing happened too.
What can i do ?
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MT3608 aint boosting(booster aint boosting)
So the problem is that when i measured the current of the output it showed 3.7v and when i turned the pot it fluctuated between 3.8 and 3.6v and rn im charging it hopefully that fixes it the wiring is fine but i dont know why thats happening any ideas๐ฅ
Arduino MAJOR PROJECT
Hi, Im completing a major project for school and I need help on few key aspects on it's functionality. How can I make my stepper motor have more torque when spinning the blind and how can I time the motor to be set in a scheduled time, as the sprocket will be connected with the chain of the blinds, so when you wake up the blinds rise and when its night it'll lower the blinds. The top piece above the motor is the Arduino uno 3, the problem with this I need to always connect it with the computer to upload the code, are there any models that'll help so I can plug it in without the use of always connecting it and how can I do this without using a bread board.
Ps: I am making a case for the Arduino project to make it more presentable and the part I sketched is already 3D printed
Image...
I don't know what OpAmp (operational amplifier) to buy
I am currently following a schematic my friend gave me for school purposes with know further information, I don't know what operational amplifier to buy, I kept searching for one online but can't seem to find one, or maybe I'm just completely wrong
Any RS485 hacker experts?
Is it possible to send two TTL devices over an RS485 to TTL module?
I was able to get it to work directly connected to a UART to the TTL devices with two 1N4148 Diodes on the TX lines, but then when I tried the same method over the RS485 to TTL module it wouldn't pass the data though.
I then injected the same data after the RS485 to TTL module into the devices then they spammed back to the microcontroller the data over the 485's so basically it's just not getting the signal from the micro to the devices to send the data back with both units on the other end plugged in.
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Analog pins always shows 0
Hello, I am learning with arduino and wanted to try analog pins. First i tried using my potenciometr and output showed only 0 so i thought i got faulty potenciometr, today i tried fotoresistor that i tested to be 100% sure that it works, and it works just fine but still output is always 0. I meassured voltage directly on arduino pins and it showed voltage that there should be. Did anyone have similar problem?
LED Display (Custom PCB)
Hi guys, I found this custom PCB in a food scale and want to add it to my project, normaly 4 weight sensors (with 3 wires each) would connect to these (upper connections). But I want to see if using the other pins there so way I can send numbers there. If you guys have any experience in that let me know please ๐
electromechanical counter; can I get help on understanding how the mosfet/flyback diode interact?
https://www.youtube.com/watch?v=nU86qobWoYM
I want to emulate this circuit, but I am afraid of shorting my arduino by wiring it incorrectly....
FY -1604b(4) infrared emitter not working
Hey everyone ! I recently bought an infrared emitter (the FY -1604b(4)) and a JST-PH 2mm cable to use in my project, but when I inserted the female JST-PH cable in the male port of the infrared emitter board I realized the cable's black cable was next to the 12v label on the board and the red one was next to ground label, I figured this was probably some sort of coloring issue from the manufacturer and tried the product with my 12.6v battery, I hid the light level sensor and pointed it at a camera I have without an infrared filter (that is sensible up to 840nm) and saw that it didn't work, I tried uncovering it and it still didn't work, I even tried with my tv remote which actually showed up on my camera's display. I tried swapping the cable and still nothing and even tried looking with my multimeter in resistance & continuous mode to see if it was properly wired and the multimeter displayed "0l" meaning there was an issue.
I honestly feel like there is probably an issue with the alimentation port or the light level sensor but I'm not sure and I hope not honestly, but I was wondering if anybody knew if I was missing something or something was wrong and I just didn't realize?
(here is a video of someone utilizing the product and showing how it works : https://youtu.be/HbjDPwX839M)
(the picture is the infrared emitter & the cable)...
Cleaning Magnetic USB Contacts
Hey there! Iโm looking to clean what looks like some mild corrosion or oxidation (canโt tell which) on the magnetic side of a magnetic USB Micro B tip, the type shown in the image below. What do you recommend for cleaning the metal rings? Would isopropyl alcohol be a safe cleaning agent?
Thank you for any help!...
