Timeline for Programming custom Arduino Mega with Arduino Uno
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
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| Mar 6, 2021 at 20:59 | answer | added | Exclose | timeline score: 1 | |
| Feb 13, 2021 at 12:42 | comment | added | Exclose | @SimonVu14 No I haven't, thank you for your recommendation. | |
| Feb 13, 2021 at 11:46 | comment | added | SimonVu14 | Have you tried dedicated ISP programmer like USBasp or USBtinyISP? Have you tried Avrdudess to read out fuse settings and or just trying to detect the MCU to see if it still responses to ISP command? | |
| Feb 13, 2021 at 10:00 | comment | added | Exclose | @StarCat I tried both 10uF and 100uF capacitors (16V polarized electrolytic) they both didn't work. 10uF made it so that I couldn't upload sketches to UNO. 100uF didn't change anything but I could upload sketches. | |
| Feb 11, 2021 at 13:41 | comment | added | StarCat | A 10-100uF capacitor on the reset pin of the "master" Arduino prevents it from resetting when the Serial port is opened, which would interfere with the process of writing the bootloader to the Mega2560. There are other ways to prevent this, but this is one of the simplest. | |
| Feb 11, 2021 at 13:39 | comment | added | timemage | Defeating the UNO's DTR reset mechanism is a necessity when using it as a programmer (arduinoisp.ino). A 10uFcap between RESET and GND is a a way to do that. In short, yes it will help. It should have been mentioned in whatever tutorials and documentation you've been following. | |
| Feb 11, 2021 at 13:35 | comment | added | Exclose | @timemage I haven't tried either of those. I'm asking if it would help at all. | |
| Feb 11, 2021 at 13:25 | comment | added | timemage | "10nF or 10uF". 10nF will not to the job. If you've been testing with 10nF switch to 10uF an see what happens. | |
| Feb 11, 2021 at 12:43 | comment | added | chrisl | Please no capslock. Thats like shouting and its difficult to read | |
| Feb 11, 2021 at 12:42 | history | edited | chrisl | CC BY-SA 4.0 |
added 548 characters in body; edited title
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| Feb 11, 2021 at 12:11 | review | First posts | |||
| Feb 11, 2021 at 12:58 | |||||
| Feb 11, 2021 at 12:07 | history | asked | Exclose | CC BY-SA 4.0 |