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1
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3answers
62 views
Replacing the Arduino voltage regulator
I want to replace the onboard AMS1117-5.0 (broken) with a LM7805.
However, the pinout is different between the two voltage regulators; AMS1117: Gnd, Vout, Vin vs LM7805: Vin, Gnd, Vout.
I would like ...
1
vote
2answers
62 views
How to connect a bend sensor?
I've got bend sensors which I want to connect to analog inputs of an Arduino-board.
Does it matter which of the headers I connect to the GND and which one to the analog inputs?
The bend Sensors ...
0
votes
1answer
53 views
ULN2803A PWM LED High Watt/Ampere
Reading the ULN2803A datasheet, especially the part "Figure 13. ULN2803A as Inductive Load Driver" and after various fails to properly drive 12v RGB led strips, as i can't find the proper mosfets. i ...
-3
votes
1answer
32 views
Two way communication between two arduinos using rf modules
I have two arduinos. I am trying to communicate between them in both direction (A to B and B to A) using 433 mhz rf modules. I am switching the operations so as arduino acts only as transmitter or ...
0
votes
3answers
87 views
AVR/Arduino: Output 2 pwm waveforms with 90 degree phase shift
So far, I was able to get two outputs at the correct resolution (35kHz-75kHz at a resolution no worse than 0.7 kHz) using the code below. I'm wondering, now, how I can get a phase shift between the ...
0
votes
0answers
18 views
playing audio file using arduino from SD Card [migrated]
This error message keeps coming up even though I installed the TMRpcm library. Here is the total message. Did I do something wrong during the install process?
Build options changed, rebuilding all ...
0
votes
0answers
29 views
Starter Project Review : Midi controller using Arduino and IC4051 in Fritzing
Hello I am working on my first electronics project, its a DIY midi controller.
Here is the Link to The Breadboard, Schematic and PCB View of the project.
I would like someone with experience to ...
0
votes
2answers
62 views
Calculating resistance for driving motors off Arduino
I'm planning on driving two motors off an Arduino. Here are the two motors I'm using, requiring 3VDC and 350mA. It was recommended I use this H-Bridge to control the two of them, capable of driving ...
0
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0answers
25 views
GPS logging on the intel edison breakout board [migrated]
I'm working on my project car, and I have decided I would like to have a GPS and log some sensors too. I'm just at a bottle neck here, the sensors I have brought pull about 7v each where I can't pull ...
0
votes
2answers
36 views
How to set up load sensor in a full bridge with amplifier?
I I'm somewhat new to electronics so forgive me for what I don't know. I'm learning as I go along here.
The overall project is I'm trying to make a scale connected to an arduino board that will ...
0
votes
1answer
50 views
How to use series resistors when connecting sensors to microcontrollers via SPI
N00b here; I have a sensor that I intend to connect to an Atmega 328P (AKA Arduino) running at 5V. I already understand why I need to use a pullup resistor on the active low chip select pin, but the ...
2
votes
2answers
74 views
LD1117 not providing fixed 3.3V
It is my first question on this site and I'm probably doing something wrong, try to be gentle! haha
I want to provide 3.3V to my ESP8266 module from my Arduino, but people say this WiFi module ...
0
votes
0answers
4 views
Ardunio UNO. Coding on Incrementing and Decrementing an output voltage by using two buttons. [migrated]
Hello I was wondering if anyone can please help Me. I'm trying to create a code using an Ardunio UNO board to increment and decrement the output voltage of the Ardunio Uno which is 5 volts and I need ...
0
votes
0answers
10 views
Programming an Arduino BT-V06 using an UNO using ICSP [migrated]
I have an Arduino BT-V06 laying around which I can't program over bluetooth for some reason. To be honest I don't understand the exact problem, but the problem is described in the question Arduino BT ...
-1
votes
2answers
41 views
ov7670 camera module [on hold]
I really need some help to figure out whether the ov7670 camera module I bought is with or without FIFO. I bought it from a local market.Can someone please tell me how can I find out whether the ...
