Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.
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31 views
Trying to get readable value with Arduino/Thermistor setup
I'm trying to get a readable value from a thermistor. Right now it's printing 223.25 as my celsius value in my room. I know this is wrong. I'm using the thermistor model which is located HERE. The ...
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0answers
21 views
Small, portable voice recorder to integrate with arduino/something else [on hold]
I want to build a portable voice recorder that is small enough to go in ones pocket and record for an extended period of time. Basically exactly like what is on the market right now (like: ...
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5answers
144 views
Override digital out with pushbutton
I have an Arduino Digital Out pin connected to a 1k resistor, then connected the base of a 2N3904 transitor. In fact, that same digital out is connected to several resistor->base-of-2n3904. Each ...
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1answer
26 views
Analogic pin 0 (pin 14) problem UNO board
I have an Arduino Project developped for an UNO Arduino Board; the sketch have a size of 30000 bytes aprox.
The whole set of features requeried works perfectly, but I have a problem with the A0 pin
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0answers
29 views
Internal temperature sensor for the MSP430 - energia
I'm trying to use the internal temperature sensor for the MSP430G2553 with energia (a branch of arduino for the TI MSP430 microcontrollers) but to I'm having trouble calibrating it. The solution I've ...
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3answers
82 views
Voltage of Voltage Regulator changes when a Potential Divider is added
A Keithley 2400 Source meter is used to provide +7V. Using Fluke 179 Multimeter, the potential across the source meter leads is 7.00V.
The source meter is then ...
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1answer
63 views
Will motors cause more noise when connected to a ground plane instead of directly to batteries?
I am making a small robot using an Arduino and two servo motors. There are two ways that I can provide power to the motors:
1) Run power and GND wires from the battery holder to the motors, then ...
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3answers
1k views
Why do I have to solder header pins?
Coming to electronics as a hobbyist I'm not sure I understand why I have to solder header pins? On more than one occasion when dealing with Arduino / breadboard projects the circuit will not work ...
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0answers
37 views
Can Arduino UNO R3 act as both keyboard/mouse at same time?
I know that the UNO R3 can be flashed with FLIP to enumerate as a keyboard OR a mouse. I've successfully done this.
My question here is, are there any methods that allow it to perform like the ...
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1answer
24 views
AVR-HVPP with Arduino Mega2560 - Continously sending on SerialPort
I am trying to reprogram some scrambled ATtiny861A with the HVPP-version of ScratchMonkey.
I imported the sketch to my IDE (version 1.0.5) and compiled/uploaded that correctly.
With disabled ...
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0answers
49 views
MCP23017s and arduino problems
I'm not native English speaker, so forgive me my bads.
Ok. Here's the deal.
In my Arduino UNO I need more outputs and inputs. I bought 3 MCP23017s. One of them for receive states from 8 ...
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1answer
43 views
Power Arduino Mini with 3 AA batteries
The arduino mini consumes 5V. The Voltage input is min. 7V.
Is it possible to ignore that and attach 3 AA batteries (4.5V) or 4AA Batteries 6V between the GND and 5V pin of an arduino mini for long ...
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0answers
11 views
Using RCSwitch and VirtualWire on the same Project
What is the easiest (and what is the most memory saving) way to use 433MHz power outlets and virtual wire.
I want to control wireless controled power outlets and some wireless sensor nodes with my ...
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3answers
91 views
Good flag practices - energia msp430
I'm making a program for the msp430 using energia launchpad, the first code that I had is the following:
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1answer
23 views
Serial monitor controls Arduino Motor Shield; why Bluetooth didn't do?
I have got Arduino Mega 2560, Ladyada Motor Shield v1.0, HC-07 Bluetooth Module, and Android Bluetooth Terminal App. I combined Motor Shield on Arduino Mega. I get M+(5V)/GND point to run my HC-07 ...
