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  • scizzix commented on HackerBoxes's instructable HackerBoxes 0013: Autosport1 month ago
    HackerBoxes 0013: Autosport

    Thanks for the response. I do have the NodeMCU unplugged from the shield but am still having a lot of problems with it. At this point it just looks like the Node is completely unresponsive, even when I try to flash it to restore function. I also have been working with the users of the fine subreddit on this one, so more details are here:https://www.reddit.com/r/hackerboxes/comments/5i1kjs/hb13_nodemcu_woes_didnt_receive_command_response/

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  • scizzix commented on HackerBoxes's instructable HackerBoxes 0013: Autosport1 month ago
    HackerBoxes 0013: Autosport

    Thanks for the response! That makes sense and also helps me understand the code a bit better, so I appreciate it.Now I just need to resolve the NodeMCU suddenly not wanting to work anymore, but that's at least a separate bit of poking.

    After finally getting Blynk to work once with this project, the NodeMCU completely stopped responding to any input. Attempting to re-upload the sketch gives me these errors:Uploading 240048 bytes from {location}FKYC4PQIW6PETMQ.ino.bin to flash at 0x00000000warning: espcomm_send_command: didn't receive command responsewarning: espcomm_send_command(FLASH_DOWNLOAD_BEGIN) failederror: espcomm_upload_mem failederror: espcomm_upload_mem failedSearching has shown me that apparently the NodeMCU/ESP8266 has this tendency, to just stop working, requiring the firmware to be flashed. Trying to use the esptool.py script found online for this gives me timeout errors (even at slow bauds), and the NodeMCU firmware programmer also gives me timeout errors.Anyone have any experience with this problem or i...see more »After finally getting Blynk to work once with this project, the NodeMCU completely stopped responding to any input. Attempting to re-upload the sketch gives me these errors:Uploading 240048 bytes from {location}FKYC4PQIW6PETMQ.ino.bin to flash at 0x00000000warning: espcomm_send_command: didn't receive command responsewarning: espcomm_send_command(FLASH_DOWNLOAD_BEGIN) failederror: espcomm_upload_mem failederror: espcomm_upload_mem failedSearching has shown me that apparently the NodeMCU/ESP8266 has this tendency, to just stop working, requiring the firmware to be flashed. Trying to use the esptool.py script found online for this gives me timeout errors (even at slow bauds), and the NodeMCU firmware programmer also gives me timeout errors.Anyone have any experience with this problem or idea on how to solve it? At this point the whole project is a brick (on wheels).

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  • scizzix commented on HackerBoxes's instructable HackerBoxes 0013: Autosport1 month ago
    HackerBoxes 0013: Autosport

    I'm getting a bit frustrated trying to get Blynk to control the motors properly, and the instructions here do really give any details. What should each of the button widgets be set to? Specific digital pins? Virtual? Trying to set one button to each pin at least lets the right wheel spin, but that's as far as I've gotten. From those that have gotten it to work, some guidance would be greatly appreciated!

    Do you have the chip driver installed; what version of OS X are you running; and does the Node show up in the serial list?I'm running 10.8.5 on my desktop Mac and realized later that the Mac driver for the chipset supports only 10.9 and above, and so uploading gave me the same errors. Eventually I had to switch to a Win7 machine to upload sketches to the board.

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