I have trouble getting a simple text display to run on a Wemos D1 mini.
My configuration looks like this:
esphome:
name: display75
platform: ESP8266
board: d1_mini
arduino_version: dev
wifi:
ssid: "[redacted]"
password: "[redacted]"
# Enable logging
logger:
# Enable Home Assistant API
api:
ota:
spi:
clk_pin: D5
mosi_pin: D7
display:
- platform: waveshare_epaper
cs_pin: D8
dc_pin: D3
busy_pin: D2
reset_pin: D4
model: 7.50in
lambda: |-
it.print(0, 0, id(font1), "Hello World!");
font:
- file: 'ubuntu-regular.ttf'
id: font1
size: 54
After flashing, the wifi subsystem does not work:
esptool.py v2.6
Serial port /dev/ttyUSB0
Connecting....
Chip is ESP8266EX
Features: WiFi
MAC: 50:02:91:4e:74:38
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Auto-detected Flash size: 4MB
Compressed 358752 bytes to 250133...
Wrote 358752 bytes (250133 compressed) at 0x00000000 in 22.1 seconds (effective 129.8 kbit/s)...
Hash of data verified.
Leaving...
Hard resetting via RTS pin...
INFO Successfully uploaded program.
INFO Starting log output from /dev/ttyUSB0 with baud rate 115200
[17:53:26];l$ܟ<�$�|�d�c|����s�c�c��'o�l'g���cp��$;l;l8�g��$��#'�|l��b��gn�$��l`�\033o'd`'{���'#�lasۓoc�ad�#���p��al��o�[I][logger:116]: Log initialized
[17:53:26][C][ota:364]: There have been 9 suspected unsuccessful boot attempts.
[17:53:26][I][app:028]: Running through setup()...
[17:53:26][C][spi:084]: Setting up SPI bus...
[17:53:28][E][waveshare_epaper:054]: Timeout while displaying image!
[17:53:28][C][wifi:029]: Setting up WiFi...
[17:53:28][D][wifi:272]: Starting scan...
[17:53:59][E][wifi:280]: Scan timeout!
[17:54:05][D][wifi:272]: Starting scan...
[17:54:36][E][wifi:280]: Scan timeout!
[17:54:42][D][wifi:272]: Starting scan...
[17:55:13][E][wifi:280]: Scan timeout!
[17:55:19][D][wifi:272]: Starting scan...
[17:55:51][E][wifi:280]: Scan timeout!
[17:55:51][W][wifi:431]: Restarting WiFi adapter...
[17:55:51][W][wifi:431]: Restarting WiFi adapter...
[17:55:56][D][wifi:272]: Starting scan...
[17:56:28][E][wifi:280]: Scan timeout!
[17:56:33][D][wifi:272]: Starting scan...
[17:57:05][E][wifi:280]: Scan timeout!
[17:57:11][D][wifi:272]: Starting scan...
[17:57:42][E][wifi:280]: Scan timeout!
[17:57:48][D][wifi:272]: Starting scan...
[17:58:19][E][wifi:280]: Scan timeout!
[17:58:19][W][wifi:431]: Restarting WiFi adapter...
[17:58:19][W][wifi:431]: Restarting WiFi adapter...
[17:58:25][D][wifi:272]: Starting scan...
[17:58:27][E][wifi:104]: Can't connect to WiFi, rebooting...
[17:58:27][I][app:123]: Forcing a reboot..
However, if I change the wave share_epaper model to 2.90in, it works! (4.20in model also throws the same error):
esphome:
name: display75
platform: ESP8266
board: d1_mini
arduino_version: dev
wifi:
ssid: "[redacted]"
password: "[redacted]"
# Enable logging
logger:
# Enable Home Assistant API
api:
ota:
spi:
clk_pin: D5
mosi_pin: D7
display:
- platform: waveshare_epaper
cs_pin: D8
dc_pin: D3
busy_pin: D2
reset_pin: D4
model: 2.90in
lambda: |-
it.print(0, 0, id(font1), "Hello World!");
font:
- file: 'ubuntu-regular.ttf'
id: font1
size: 54
esptool.py v2.6
Serial port /dev/ttyUSB0
Connecting....
Chip is ESP8266EX
Features: WiFi
MAC: 50:02:91:4e:74:38
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Auto-detected Flash size: 4MB
Compressed 374528 bytes to 257154...
Wrote 374528 bytes (257154 compressed) at 0x00000000 in 22.7 seconds (effective 131.7 kbit/s)...
Hash of data verified.
Leaving...
Hard resetting via RTS pin...
INFO Successfully uploaded program.
INFO Starting log output from /dev/ttyUSB0 with baud rate 115200
[19:16:03]{ld��<�d�|�l�c<ǃ��s�c�c��'o�l'g���cp��l;l;l8�g��l��#'�|l��b��gn�$��l`�\033ogd`'{���'#�la{��gc�a$�b���p��al��o�[I][logger:116]: Log initialized
[19:16:03][C][ota:364]: There have been 4 suspected unsuccessful boot attempts.
[19:16:03][I][app:028]: Running through setup()...
[19:16:03][C][spi:084]: Setting up SPI bus...
[19:16:03][C][wifi:029]: Setting up WiFi...
[19:16:04][D][wifi:272]: Starting scan...
[19:16:05][E][waveshare_epaper:054]: Timeout while displaying image!
[19:16:06][E][waveshare_epaper:054]: Timeout while displaying image!
[19:16:07][E][waveshare_epaper:054]: Timeout while displaying image!
[19:16:08][E][waveshare_epaper:054]: Timeout while displaying image!
[19:16:09][E][waveshare_epaper:054]: Timeout while displaying image!
[19:16:10][E][waveshare_epaper:054]: Timeout while displaying image!
[19:16:10][D][wifi:287]: Found networks:
[19:16:10][I][wifi:322]: - '[redacted]' [redacted]▂▄▆█
[19:16:10][D][wifi:323]: Channel: 1
[19:16:10][D][wifi:324]: RSSI: -36 dB
[19:16:10][I][wifi:322]: - '[redacted]' [redacted]▂▄▆█
[19:16:10][D][wifi:323]: Channel: 11
[19:16:10][D][wifi:324]: RSSI: -62 dB
[19:16:10][I][wifi:322]: - '[redacted]' [redacted]▂▄▆█
[19:16:10][D][wifi:323]: Channel: 6
[19:16:10][D][wifi:324]: RSSI: -70 dB
[19:16:10][I][wifi:322]: - '[redacted]' [redacted]▂▄▆█
[19:16:10][D][wifi:323]: Channel: 6
[19:16:10][D][wifi:324]: RSSI: -81 dB
[19:16:10][D][wifi:326]: - [redacted] [redacted]▂▄▆█
[19:16:10][D][wifi:326]: - [redacted] [redacted]▂▄▆█
[19:16:10][D][wifi:326]: - [redacted] [redacted]▂▄▆█
[19:16:10][D][wifi:326]: - [redacted] [redacted]▂▄▆█
[19:16:10][I][wifi:164]: WiFi Connecting to '[redacted]'...
[19:16:11][E][waveshare_epaper:054]: Timeout while displaying image!
[19:16:12][E][waveshare_epaper:054]: Timeout while displaying image!
[19:16:13][E][waveshare_epaper:054]: Timeout while displaying image!
[19:16:14][E][waveshare_epaper:054]: Timeout while displaying image!
[19:16:14][I][wifi:380]: WiFi connected!
[19:16:14][C][wifi:254]: SSID: [redacted]
[19:16:14][C][wifi:255]: IP Address: 192.168.86.74
[19:16:14][C][wifi:257]: BSSID: [redacted]
[19:16:14][C][wifi:258]: Hostname: 'display75'
[19:16:14][C][wifi:262]: Signal strength: -41 dB ▂▄▆█
[19:16:14][C][wifi:263]: Channel: 1
[19:16:14][C][wifi:264]: Subnet: 255.255.255.0
[19:16:14][C][wifi:265]: Gateway: 192.168.86.1
[19:16:14][C][wifi:266]: DNS1: 192.168.86.1
[19:16:14][C][wifi:267]: DNS2: (IP unset)
[19:16:15][E][waveshare_epaper:054]: Timeout while displaying image!
[19:16:15][C][ota:029]: Over-The-Air Updates:
[19:16:15][C][ota:030]: Address: display75.local:8266
[19:16:15][W][ota:036]: Last Boot was an unhandled reset, will proceed to safe mode in 6 restarts
[19:16:15][C][api:030]: Setting up Home Assistant API server...
[19:16:15][I][app:060]: setup() finished successfully!
[19:16:16][E][waveshare_epaper:054]: Timeout while displaying image!
[19:16:16][I][app:096]: esphome version 1.13.6 compiled on Sep 25 2019, 19:15:36
[19:16:16][C][wifi:372]: WiFi:
[19:16:16][C][wifi:254]: SSID: [redacted]
[19:16:16][C][wifi:255]: IP Address: 192.168.86.74
[19:16:16][C][wifi:257]: BSSID: [redacted]
[19:16:16][C][wifi:258]: Hostname: 'display75'
[19:16:16][C][wifi:262]: Signal strength: -41 dB ▂▄▆█
[19:16:16][C][wifi:263]: Channel: 1
[19:16:16][C][wifi:264]: Subnet: 255.255.255.0
[19:16:16][C][wifi:265]: Gateway: 192.168.86.1
[19:16:16][C][wifi:266]: DNS1: 192.168.86.1
[19:16:17][C][wifi:267]: DNS2: (IP unset)