All Questions
Tagged with nano or arduino-nano
1,350 questions
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Software serial and RS485
I have 2 Arduino Nano that will communicate in half duplex mode with transceiver using MAX485. But the master has libraries like Wire.h, uses tone() and also receives UART communication.
I'm a ...
- 113
0
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1
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47
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Use of 3 synchronized PWM pins on Arduino Nano
I try to use three PWM pins on an Arduino Nano, each with 10kHz. I know that there are timer0, timer1 and timer3 but I wonder if I can combine them while ensuring all three PWM pins to be in sync and ...
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1
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0
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57
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Issue reading sensor values with CD74HC4067 16 Channel Mux
I'm running to an issue when measuring my sensor outputs. Previously I've connected my sensors directly to Nano analog pins and measured fine, but I want to use more sensors so trying a mux. Any help ...
- 11
1
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1
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69
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Missing data when communicating over UART
So I am working on an Arduino project and have trouble communicating over UART.
I have a SIM7600G-H 4G Module from Waveshare and hooked it up to an Arduino Nano ESP32. The connections are as follows:
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1
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64
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Using Serial Port names as a variable array for looping access to same block of code
If I have multiple NODES one on each Serial port (and / or SoftwareSerial port) all of which have the same code for execution can the names of each Serial port be put into an array such that I can say:...
-1
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1
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120
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Connecting the device to Arduino via the UART protocol
The essence of the task
I have a task to connect an external device with my arduino and transfer data to each other via the UART protocol. The external device has 4 pins (Two for power supply and RS-...
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2
answers
117
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problem with scripts in Arduino Lab for MicroPython
I am trying to set up an Arduino Nano ESP32 so that I can code in MicroPython. I successfully installed Arduino Lab for MicroPython and flashed the firmware onto the device, but when I try to run the ...
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0
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0
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87
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Cannot get Arduino Nano with CH340 chip to keep working
I have a bunch of Arduino Nano boards with the CH340 chip. When I want to upload code to a board, it sometimes works the first time, sometimes it doesn't. Afterwards, it mostly doesn't work anymore.
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- 129
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45
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Cannot ping a host unless I use parseIP from Ethercard
I'm trying to write an Arduino sketch which pings multiple hosts and switches some RGB LEDs to indicate the status of the devices on my network. This question is a followup of ParseIP in the EtherCard ...
- 129
-1
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2
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142
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I need more free memory on my Arduino. What can I do if I don't want to use float? [closed]
I realize that using float results in loading all or at least parts of the floating point library, which consumes a significant amount of memory.
How can I avoid using float?
- 124
-1
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1
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148
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RTC DS1307 gives random and incorrect time value [closed]
The RTC module can output the hours as 165, and the minutes as 165. This is some random number that is different every time. Everything works fine, but at random times I get this. Maybe once every ...
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1
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1
answer
93
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ParseIP in the EtherCard library does not parse an address twice
I'm trying to modify the pings example from the EtherCard library so I can ping multiple hosts. The end result should be a small device which monitors other devices on my network.
Here is the modified ...
- 129
3
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2
answers
1k
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I need compact code to fit in memory
I feel a little like I am back in 1975 trying to fit my code in 4K of RAM.
I am writing some code for an ATTiny88, and the code is starting to get big, relatively speaking. I need to save every byte ...
- 113
0
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1
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64
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Compiling issues with included library MX1508 for Billy Bass build
Thank you for considering my question.
I have been learning Arduino so I can teach coding basics to my son. I came across a fun project to interface bluetooth with an old singing Billy Bass so he can ...
-1
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1
answer
103
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Reasons for an ATmega328P Nano SuperMini USB-C board not being recognized by a PC/Mac? [closed]
I recently got two of these ATmega328P Nano SuperMini USB-C boards but none of them is being recognized by my PC or Mac.
I'm using the old bootloader setting in the Arduino IDE 2.3.6, CH340 drivers ...
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