Flashing Wemos D1 mini eith esphome

dmeus · November 11, 2020, 11:23am

Hi all,

I’m working on building this NFC reader: https://github.com/adonno/tagreader. Soldering went perfectly, now on to the flashing part. What I can’t seem to figure out is how to transfer the yaml from esphome to the Wemos D1 mini. In a previous esp-project, I used a seperate flash module connected to my laptop. In this project, it seems to be possible to flash the board OTA. However: it’s the yaml that points the Wemos to my home network. So logically, this doesn’t make sense. Long story short: do I need to connect the Wemos to my Pi in order to flash the thing? Apologies for this seemingly stupid question, I just can’t get my head around it at the moment.

sender · November 11, 2020, 11:26am

You can:
compile:

then “download binary”

and use esphome flashtool to flash via usb

Infineghost · November 11, 2020, 11:26am

You can connect it to you pi. But I experienced this not working.

I’m now using esphome flasher on my laptop. I connect the d1 mini to my laptop and flash the bin file generated by esphome to the mini.

@sender ninjad me hahaha

nickrout · November 11, 2020, 6:18pm

The first flash is over serial/usb.

Plug the D1 mini into the machine running esphome. Choose the serial port in the esphome ui. Click upload. Job done.

poudenes · November 11, 2020, 6:24pm

lucky you can use ESPHome… when i try to compile i get always this error:

Compiling /data/test/.pioenvs/test/src/esphome/components/api/api_connection.cpp.o

sh: 1: xtensa-lx106-elf-g++: not found

Compiling /data/test/.pioenvs/test/src/esphome/components/api/api_pb2.cpp.o

sh: 1: xtensa-lx106-elf-g++: not found

Compiling /data/test/.pioenvs/test/src/esphome/components/api/api_pb2_service.cpp.o

sh: 1: xtensa-lx106-elf-g++: not found

*** [/data/test/.pioenvs/test/src/esphome/components/api/api_connection.cpp.o] Error 127

Compiling /data/test/.pioenvs/test/src/esphome/components/api/api_server.cpp.o

*** [/data/test/.pioenvs/test/src/esphome/components/api/api_pb2.cpp.o] Error 127
*** [/data/test/.pioenvs/test/src/esphome/components/api/api_pb2_service.cpp.o] Error 127

sh: 1: xtensa-lx106-elf-g++: not found

*** [/data/test/.pioenvs/test/src/esphome/components/api/api_server.cpp.o] Error 127
========================= [FAILED] Took 36.21 seconds =========================

dmeus · November 11, 2020, 6:27pm

Of course: silly me It’s even the same procedure as the build for my ESP-connected door bell. Don’t know how that could have escaped me. Thanks all!

nickrout · November 11, 2020, 6:30pm

I think you are off topic.

poudenes · November 11, 2020, 6:43pm

Sorry, yes i was…

sender · November 11, 2020, 6:50pm

On-topic:

if flashed via usb initially, OTA flash can be done from the ESPHome interface.

But be aware! this only works if device is:

On same subnet as homeassistant running esphome (with DNS VERY properly installed and used) --> it uses DNS
If you add this in the esphome config below wifi:
use_address: <ip address of esp either got via DHCP or specified>

Specified (instead of DHCP) like:

wifi:
  manual_ip:
    static_ip: <ip address>
    gateway: <ip address>
    subnet: 255.255.255.0

then in the pluging also make sure you put:

(for uptime sensor (green color)

You can then just use:
UPLOAD:

nickrout · November 11, 2020, 7:57pm

no it uses mDNS AFAIK.

Are you suggesting this as an alternative to mDNS working?