Questions tagged [attiny]
An 8-bit, low power AVR microcontroller from Atmel.
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IDE will not upload to ATTiny88
I was successfully compiling sketches and uploading to various MCUs, including the ATTiny88. Suddenly the IDE quit compiling and complained of various missing compilers. I found and corrected an ...
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Attiny84 with external eeprom-write and read beyond 255
Just starting with external EEPROM and ATTiny's. I am successfully writing and reading to the 24LC64 chip using the following code with TinyWireM (thanks to other help on the forums). However, I ...
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subroutine with if else does not work
Everything in this code seems to work as expected except the subroutine speedcw at the bottom. It should change the time_delay variable.
#define ENA 2 //pin 2 on chip
#define in_A 0 //pin 0 on chip ...
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How to reduce power consumption using ADC attiny arduino
i have finally created the code and it works perfectly with internal 8mhz crystal but when i shift to external 8mhz as per the systems demand, the current consumption during sleep mode stays between ...
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Sudden Error: File does not exist [closed]
I am suddenly getting an error every time I try to compile code in the IDE, even though every one of the sketches previously compiled just fine:
Arduino: 1.8.13 (Windows 7), Board: "MH-ET LIVE ...
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I goofed: I used a digital output rather than an analog output
OK, I have a little hardware issue I need to fix in software for the time being. I say, "For the time being," because I already have the PC Boards printed, and I need to make do for this ...
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ATTiny88 missing pulses - maybe
I have been given to understand the ATTiny88 is very similar to the Arduino Uno / ATMega328 MCU. There does not seem to be a tag for the ATTiny88, so that is why I chose the tags I did. I do not ...
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Using internal voltage reference for sensor
i am using 3.7~4.2V lithium battery. I am using internal voltage reference to read constant battery voltage as we know that the battery voltage level depletes overtime. The problem is that my sensor (...
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Reading constant battery voltage and using the obtained value in sensor formula
there i am working on a project in which my system is connected to 3.7v~4.2V lithium battery, I have to read constant battery voltage irrespective of the current battery voltage and to do that I am ...
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How to declare PB3 reset pin of ATtiny44 in program (using arduino IDE platform)
As follow-up of my former question:
Hi, I want to know how I can access PB3 reset pin of ATtiny44 IC. I ran out of pins so I am using it as I/O pin, but I am unable to declare it in the code.
This ...
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adc arduino using reference voltage to read stable/constant lithium battery voltage
I want to read my lithium battery voltage.
I WANT TO CREATE A FUNCTION TO READ MY 3.7~4.2V,1200mAH BATTERY VOLTAGE THROUGH A MICROCONTROLLER (ARDUINO OR ATTINY44).
THEN I WANT TO CALL THE CREATED ...
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Why are ATTiny so expensive compared to ESP modules compared to features they offer? [closed]
I was looking for a cheap MCU solution for a project, apart from being compact, ATTiny doesn't seem to provide much value. I was hoping it is cheaper but nope, They are mostly above 1.5 USD in any ...
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Alternate full speed usb library for ATTINY85?
I'm currently working on a project using the ATTINY85 for USB communication. After some research, it turns out that the V-USB library only supports usb 1.1, which only supports a 125hz polling rate. I ...
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Need help ATtiny85 not working as standalone
I have ATTiny85 that I want to drive a servo. Burned bootloader to the ATTiny85 and I am using HW-260 development board to program and to test the code. While the ATTiny85 works perfectly on the HW-...
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slower clock frequency than expected on attiny202
I am programming an attiny202 which as per datasheet can run up to 20Mhz, but after compiling/uploading this simple code to the attiny202 and watch the PA2 pin on the oscilloscope, I see that the pin ...
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Issues Uploading Code to ATTiny84 with Sparkfun AVR Pocket Programmer and ATTinyCore
I am getting back into programming with Arduino and built a POV fidget spinner inspired by an instructable by MakersBox. I am using the SparkFun AVR Pocket Programmer and an ATTiny84 (8MHz internal ...
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How to program Attiny12 with Arduino?
I bought a bunch of Attiny12's from Digikey without checking if I can even program them with an Arduino. I've looked around a bunch, and I've only ever found ways to program Attiny13 and Attiny10.
...
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On ATtiny84, why does delay() stop working properly when RadioHead ASK is used?
When I call the delay() function on the ATtiny84 micro, it delays for the expected time, until I call the init() function on an RH_ASK object. After this, the micro seems to freeze.
#include <...
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Can we use more than one timer when programming an Atmega32/16?
I tried to do a simple program using the ATmega16 microcontroller, the program is to toggle two LEDs the first one by using timer0 interrupt and the other using timer2 interrupt.
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Optimizing code for ATtiny10
I'm trying to squeeze code onto an ATtiny10, but I'm just not getting there. I'm using 1060 bytes and only have space for 1024 bytes.
The code is simple enough; I need to read a button pin. If high it ...
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atTiny85 5V and servo usage
I have an AtTiny85 that I would like to move a servo on I/O "4" for this project.
I can't seem to get it to work, no matter what I do. I had tons of issues getting it to program, but I've ...
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Adding an Interrupt to ATtiny45 with Arduino
I recently wrote a simple script to...we'll say, "flash some LED's" and uploaded it to an attiny45. In short, the script cycles through 3 LED's and turns them on for a specified frequency, ...
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'GIMSK' was not declared in this scope
I'm programming an ATTiny 85 using the Arduino IDE and an Arduino Nano as "Arduino as ISP" to program the ATTiny. I succeeded a week ago and now I want to program a second chip but get the '...
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How can i reduce my global variable use? Attiny85
I'm trying to compile my code but i keep exceeding my global variable memory by 12%.
Is there anything i can do in my code to further reduce RAM usage?
Or do i have to do modifications to the ...
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ATTINY13A, Servo only makes half a sweep
I have been trying to get a servo to sweep using an attiny13A. And i managed to get the servo to (kindoff) work by the help of a previous thread. But i'm now getting an issue. The servo only goes to ...
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Programming ATTiny1614; Unexpected Signature
Trying to program an ATTTYIN1614 with jtag2updi.
https://github.com/ElTangas/jtag2updi
I was able to use this tool to program an ATTINY1626-XFR and ATTINY807-MNR, but I'm getting an error with ...
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SMBus on ATTiny204 [closed]
So I want to connect multiple LED Panels with dynamic addressing to a Master Controller.
Seems like SMBus should be able to do that, however I don't find any Library for the Arduino framework.
Does ...
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I am in need of a usable communication library on 1-4 pins of ATTiny84 instead of I2C
I messed up when designing my PCB and just assumed that I could use software slave I2C with ATTiny84.
The reason I did so is - I needed to use all of the analog inputs.
The pins I have on my ...
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Digispark Rev.3 Kickstarter ATTiny85 using all 6 pins
i have some trouble to use i2c and the other pins at the same time.
im tring to control the attiny over i2c with a arduino and the attiny should control a 28byj-48 stepmotor.
i started to setup the ...
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Attiny85 uploading error
I am getting an error while trying to upload programs to the Attiny85 through a USBTinyISP programmer, found here. Unfortunately, it isn't working. Following this tutorial for connecting the board and ...
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How can I control 2 servos separately using a joystick on an ATTiny85?
Prelude
I haven't done a lot of work in programming chips. The ATTiny85 is the first chip I've programmed, and I have the hang of the basics I think, but I don't have an in-depth understanding of it's ...
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Driving a servo with an ATTiny13A
So, I managed to fry my cheap servo/ESC (electronic speed controller) and decided to make my own using an ATTiny13A on some perfboard. But, I have run into some issues getting the servo to respond. I'...
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Is it safe to connect VCC to a data pin on Attiny chips?
I'm trying to make a compact prototype with Attiny2313A, and want to connect VCC to pin 18 with a push button as in the picture. Is it safe? Or do I need a resistor there?
user70125
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ATTiny85 won't boot if PIN2 is not pulled high
I had some problem setting up a working ATTiny85 outside of its development board.Connection on my breadboard:
pulled high (10K R) -- 1 PIN 8 -- VCC (+5V)
trouble here!! -- 2 PIN 7 --
...
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ATTiny85 USB Troubleshooting. Device is not recognized when programmer asks to plug in device
I have bought this cheap AVR Programmer Board and I thougth that I would be OK just plugging it into my USB port. Then after I did that nothing happened so I passed last 4 hours trying to understand ...
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send command to Slave and receive response over I2c
so I have an Arduino mega as the master and an attiny84 as the slave
the master can send a command S to the slave and the slave should respond with TRUE so here is my code:
master:
bool GetOnline(){
...
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Fail uploading any sketch to ATtiny85 USB
I have a Digistump's ATtiny85 (probably a clone ), which fails uploading any sketch, saying: Warning: device with unknown new version of Micronucleus detected. This tool doesn't know how to upload to ...
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Chips & High voltage: Connected in Series?
I have 3 micro-controllers that will be connected to a battery, and I need to provide each of them between 3 and 5 volts maximum.
I have 3V batteries but they do not seem to provide enough power, ...
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Attiny : Is it possible to analog read on PB1?
I'm trying to read an analog input on the Attiny85 physical pin 6 (PB1, PWM), but analogRead(PB1) always returns 1023. Is it even possible to use analogRead on this pin?
I'm fairly new to this so ...
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How to use a push button & transistor as a kickstarter for power supply?
My goal is to save energy, and I intend to do so by powering a chip with itself, and cut power whenever unnecessary. The best image I can have is of a startled monkey who jumps on the branch, screams ...
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Voltage from batteries in series operating on 3 ATTiny, 3 Buttons, and 3 Piezo buzzers
I intend to power three ATTiny45 chips (each requiring around 3.5V) in parallel with 2 pill batteries (namely Maxwell's CR2032) in series (which would come to around 6V). They will each play a sound ...
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ATtiny85-DHT11-TM1637
I have tried many combinations and I can get the Attiny85 to display on the TM1637 just fine, but I cannot get ant readings from the DTH11, tried different pins, libraries. I upload code via UNO as ...
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Record data to SD card with ATtiny85
An application of ATtiny with SD card is complicated due to missing of hardware SPI in attiny.
The "ATmega" code for creating of a "SD file" is:
#include <SPI.h> ...
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_delay_ms() is much slower than expected (by a factor of 6) on TinyAVR 0/1 (ATTiny1604)
I designed a custom AVR development board using the Atmel ATTiny1604 microcontroller. It belongs to the new Tiny-0 family, due to its recentness, some required changes to relevant toolchains have yet ...
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How do I Upload a Program via Serial Port to an Optiboot_X-Enabled TinyAVR-0/1 Microcontroller using the Command Line?
Background
In 2019, Microchip acquired Atmel and released several new AVR microcontrollers, including the Tiny-0 and Tiny-1 Series. On these mircocontrollers, traditional Atmel ICSP programming was ...
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use Nodemcu to program Attiny85
I have a dev board for my attiny85.
when connecting it to the computer I get "unknown USB device(device descriptor request failed)"
although I have the needed drivers, so I thought of trying ...
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Uploading sketch to ATTiny84 with Nano as "Arduinio as ISP" stopped working
Update 12/11
Working through the answer posted.
Upload reset appearance - [Works blinks correctly.]
Convince yourself that reset appearance code reliable indicates DTR resets. [Opened the serial ...
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Arduino to AtTiny change of pin interrupt behaviour?
I have a project which, to save on battery, is put to sleep until an interrupt pin is rising from LOW to HIGH.
This works well on Arduino Nano, however the translation doesn't on the ATTiny.
#include &...
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Measure Vcc on ATtiny13a?
I am trying to figure out if I can measure the Vcc of attiny13a, but the code I use for arduino's and attiny85 does not work. This is where I got the code from. I know that it works by using the 1.1v ...
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Arduino IDE on Attiny45: What kind of power does a chip need?
I have this little AtTiny45 which I'm loading a program with Arduino as ISP.
My goal to use this chip along with a op amp, a piezo buzzer and a press button, and have it automatically sleep between ...
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