Community Digest

Top new questions this week:

CUT HERE FOR EXCEPTION DECODER --------------- Exception (0): esp8266

Why does my program end up with CUT HERE FOR EXCEPTION DECODER for esp8266? I am triying to integrate gps and accelerometers with a website. integrating gps is the hardest one since it always refuse ...

esp8266 iot esp8266webserver  
user avatar asked by Marifin - Score of 2

PinChange Interrupts proplem with DRO scales

I am trying to read values from 2 separate DRO scales ( Digital Read Out ), most commonly used on lathe and milling equipment, CNC, or any X,Y,Z table. These scales need to use 2 interrupt pins per ...

interrupt  
user avatar asked by DucatoboyStu 750 Score of 1
user avatar answered by Edgar Bonet Score of 1

L9780 and SPI communication

I'm working on a program to interface with a development board I spun for an L9780 - wideband oxygen controller IC. At this point, I'm trying to get a consistent "status" read back but ...

arduino-uno spi  
user avatar asked by jungle_jim Score of 1

Linear actuator with L298N board

I have a linear actuator that has 4 cables coming out, which I can control with the following connections: red🔴 + 🔵 blue and black ⚫ + ⚪ white is going outside red 🔴 + ⚪ white and black ⚫ + 🔵 blue ...

l298n  
user avatar asked by clankill3r Score of 1
user avatar answered by evolutionizer Score of 0

rylr498 receiver problem

I have a problem receiving heart rate message tranmission data from the reciever. I was able ot transmit the data from the trasnmitter but I am unavke to recieve the data from the reciever side. This ...

arduino-nano lora  
user avatar asked by Adithya narasimhan Score of 1

GPS module GY-GPS6MV2 only returns numbers

I have a GY-GPS6MV2 connected to a nano. (Also tried UNO same result). RX on GPS goes to TX of Nano PIN 3 and TX on GPS to PIN 4 on Nano. When I run the code below all I get is a set of numbers. They ...

arduino-nano gps  
user avatar asked by TomTheTec Score of 1
user avatar answered by Edgar Bonet Score of 1

How do I convert a structure to a char[] for use in Wire.h, or is there a better way?

I need to interface an ATTiny88 MCU configured as an I²C slave with a Raspberry Pi configured as an I²C master. I may be using the wrong approach, but I have a structure consisting of four different ...

i2c float struct char  
user avatar asked by LesRhorer Score of 1
user avatar answered by Edgar Bonet Score of 2

Greatest hits from previous weeks:

2.4" TFT LCD Shield isn't working on Arduino Mega

Even on ebay's website it is mentioned that I can't use 2.4" TFT LCD Shield display on attach to Arduino Mega. The problem is that I bought this shield by mistake. I want to put this shield onto ...

arduino-mega shields lcd  
user avatar asked by Bay Score of 10
user avatar answered by user3473830 Score of 7

How high of a baud rate can I go (without errors)?

The standard is 9600 baud. That's just the standard. Using a Arduino Uno SMD R2, what is the highest practical baud rate I can achieve? Bonus points for the audacious: how would you go about creating ...

arduino-uno-smd  
user avatar asked by Anonymous Penguin Score of 59
user avatar answered by Connor Wolf Score of 82

Programming an Arduino using Python, rather than C/C++

I am not very skilled with the C Language and I was wondering if there is a way in which python could be used to program an Arduino. This would most likely require a different IDE in order to be able ...

programming python  
user avatar asked by JVarhol Score of 41
user avatar answered by Peter Bloomfield Score of 27

Arduino ModBus RTU master communication with Power Meter problem

i have an arduino UNO with RS485 module. I have made this connection: And i have an problem with communication of this module with power meter "InePro PRO-1Mod" (datasheet) over ModBus protocol. I ...

arduino-uno communication rs485 modbus  
user avatar asked by Vasekdvor Score of 2

Drivers for CH9102X serial port chip

Some ESP-family cheap boards manufacturers had recently moved to CH9102X serial port chip (from CP2102), and it seems the drivers for CH9102X are hard to find. Where can I download them?

esp8266 esp32  
user avatar asked by finnan Score of 3
user avatar answered by finnan Score of 5

Arduino Nano uploading gives error: avrdude: stk500_recv(): programmer is not responding

I have a Arduino Nano (Sainsmart) that I'm trying to upload a sketch to. Under the Arduino IDE, the device selected was Arduino Nano w/ ATmega328. However uploading the sketch gives me the error ...

programming serial uploading sketch arduino-nano  
user avatar asked by Nyxynyx Score of 40
user avatar answered by microtherion Score of 6

Pause code untill a button is pressed

I need some code to pause the Arduino code until a button is pressed. I have a long program and at point I need a condition that if a Button on pin A2 is pressed then go forward, otherwise wait. I ...

arduino-uno  
user avatar asked by Kumar rajit Score of 1
user avatar answered by Majenko Score of 3
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