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How to flash the code? Arduino IDE > ESP32 Cam
Can someone guide me on how to flash my code to esp32 cam. It doesn't have interface for me to upload my code. Im still learning about the arduino
My hardware components are:
ESP32 Dev Board - Node MCU
ESP32 Shield Board...
Battery issue
I’m building an obstacle-avoidance robot with Arduino. I’m using 4 Li-ion 18650 cells (3.7 V, labeled 8800 mAh) connected in a battery holder. When I connect this pack to my L298N motor driver, the two DC motors don’t run (but the L298N power LED turns on).
Why might this be happening, and how can I fix it?...
Has anyone tried using water level sensors with RO water?
Hello, I'm planning to make an automatic water stopper using solenoids and water level sensors. But the question is will it work if the RO (reverse osmosis) water is a poor conductor, it isn't that clean like distilled water, but the TDS is like 15 so there is still a chance that the sensor will show something or is it just better to buy TDS sensors that are more expensive?
Touch Screen | Esp32 | Squareline studio
Hello guys, i made a design on squareline studio and wonder how i can upload this on this type of touch screen (its my first time doing this) I check online but did not found tuto for my specific model
can someone help me make my MAX30100 sensor work
So I've been wiring the sensor as
VIN --- 3.3V
GND --- GND
SCL--- A5
SDA--- A4 ...
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 ?
...
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 ideas🥀
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.
...
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 🙂
