The other option is to use any ethernet module ESP and one of these:
https://www.jaycar.com.au/5v-micro-usb-poe-splitter/p/YN8416
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I just use cheapys for my ESPHome BLE scanner nodes (if that’s all they’re doing).
Never had any drama’s with these.
But you can definetly run into issues trying mix the ble scanner and other sensors.
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In cases in which a small size matters, I was very happy with the M5Stamp Pico. It doesn’t have on-board USB, which is acceptable for e.g. OTA firmware use cases.
They now have another product called M5Stamp C3U, which I’ve ordered but not received yet.
3 Likes
Are stickers a newish thing?
The S2’s I got came with them too and I reckon they’re great!
Your link doesn’t work anymore. This chip comes with a sticker?
The M5Stamp Pico was the first one I encountered like that. It has not only the sticker but the plastic cover. Also comes with a few pins on a special header. Really like it overall
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Yes. From Ali Express Lolin store.
AU $5.86 | S2 Mini V1.0.0 - LOLIN WIFI IOT Board based ESP32-S2FN4R2 ESP32-S2 4MB FLASH 2MB PSRAM MicroPython Arduino Compatible
The Seeed Xaio C3 has turned up and a minimal test show that it works as expected. As with the other C3 modules I have tested the ESPHome default settings for the C3 don’t work, you need to add the “board_build.flash_mode: dio” line under esphome:.
The inbuilt JTAG/Serial works fine for the initial programming but the serial port only works for programming, it does not work as a local serial monitor.
INFO Reading configuration /config/esphome/xaio-c3-test1.yaml...
INFO Starting log output from xaio-c3-test1.local using esphome API
INFO Successfully connected to xaio-c3-test1.local
[13:27:14][I][app:102]: ESPHome version 2022.8.0 compiled on Aug 30 2022, 13:25:18
[13:27:14][C][wifi:491]: WiFi:
[13:27:14][C][wifi:353]: Local MAC: [redacted]
[13:27:14][C][wifi:354]: SSID: [redacted]
[13:27:14][C][wifi:355]: IP Address: 10.0.0.134
[13:27:14][C][wifi:357]: BSSID: [redacted]
[13:27:14][C][wifi:358]: Hostname: 'xaio-c3-test1'
[13:27:14][C][wifi:360]: Signal strength: -27 dB ▂▄▆█
[13:27:14][C][wifi:364]: Channel: 11
[13:27:14][C][wifi:365]: Subnet: 255.255.0.0
[13:27:14][C][wifi:366]: Gateway: 10.0.0.1
[13:27:14][C][wifi:367]: DNS1: 10.0.0.1
[13:27:14][C][wifi:368]: DNS2: 0.0.0.0
[13:27:14][C][logger:275]: Logger:
[13:27:14][C][logger:276]: Level: DEBUG
[13:27:14][C][logger:277]: Log Baud Rate: 115200
[13:27:14][C][logger:278]: Hardware UART: UART0
[13:27:14][C][mdns:094]: mDNS:
[13:27:14][C][mdns:095]: Hostname: xaio-c3-test1
[13:27:14][C][ota:085]: Over-The-Air Updates:
[13:27:14][C][ota:086]: Address: xaio-c3-test1.local:3232
[13:27:14][C][ota:089]: Using Password.
[13:27:14][C][api:138]: API Server:
[13:27:14][C][api:139]: Address: xaio-c3-test1.local:6053
[13:27:14][C][api:143]: Using noise encryption: NO
[13:27:14][C][wifi_signal.sensor:009]: WiFi Signal 'Xaio-C3 WiFi'
[13:27:14][C][wifi_signal.sensor:009]: Device Class: 'signal_strength'
[13:27:14][C][wifi_signal.sensor:009]: State Class: 'measurement'
[13:27:14][C][wifi_signal.sensor:009]: Unit of Measurement: 'dBm'
[13:27:14][C][wifi_signal.sensor:009]: Accuracy Decimals: 0
[13:27:21][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -27.00000 dBm with 0 decimals of accuracy
[13:27:31][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -30.00000 dBm with 0 decimals of accuracy
[13:27:41][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -38.00000 dBm with 0 decimals of accuracy
[13:27:51][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -36.00000 dBm with 0 decimals of accuracy
[13:28:01][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -32.00000 dBm with 0 decimals of accuracy
[13:28:11][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -30.00000 dBm with 0 decimals of accuracy
[13:28:21][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -55.00000 dBm with 0 decimals of accuracy
[13:28:31][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -31.00000 dBm with 0 decimals of accuracy
[13:28:41][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -43.00000 dBm with 0 decimals of accuracy
[13:28:51][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -37.00000 dBm with 0 decimals of accuracy
[13:29:01][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -39.00000 dBm with 0 decimals of accuracy
[13:29:11][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -39.00000 dBm with 0 decimals of accuracy
[13:31:50][I][ota:105]: Boot seems successful, resetting boot loop counter.
[13:31:50][D][esp32.preferences:113]: Saving 1 preferences to flash...
[13:31:50][D][esp32.preferences:142]: Saving 1 preferences to flash: 0 cached, 1 written, 0 failed
[13:31:51][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -40.00000 dBm with 0 decimals of accuracy
[13:32:01][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -42.00000 dBm with 0 decimals of accuracy
[13:32:11][D][sensor:127]: 'Xaio-C3 WiFi': Sending state -40.00000 dBm with 0 decimals of accuracy
3 Likes
I have a few of these same Lolin S2 Mini boards, but I haven’t been able to get them working on ESPhome. How are you using them?
There is an open pull request on the esphome project to support this, but it has been sitting idle for a while now waiting to be merged.
What is the problem with them? Do they have some obscure esp32 variant?
Topic is What’s your favourite ESP32 board? (# Best, good, cheap, quality, reliable) 
Best would be to open a new topic to discuss your problems (and get them solved) 
Only just got around to testing them but can’t get it working with ESPHome. And therefore can’t really recommend them just yet.
There’s a ESPHome Discord thread on the topic: ’ Cant get Lolin S2 mini work ’
Edit: Got it working with details on that thread and right button combination. Haven’t tested in detail yet
Edit#2: I seemed to have stability issues with it and so cannot recommend at this point.
esp32:
board: lolin_s2_mini
variant: ESP32S2
framework:
type: arduino
version: 2.0.3
platform_version: 5.0.0
https://www.wemos.cc/en/latest/tutorials/s2/get_started_with_arduino_s2.html#upload-code
As @orange-assistant suggested though further dicussion should probably go on a dedicated thread.
Is the C3 Mini V2.1.0 - LOLIN good?
I’m interested in using one as a Bluetooth proxy and maybe with sensors eventually.
I think you’d likely find you’d be an early adopter and may find there’s limited information/support around. I can’t comment on the design myself.
The ESPHome Discord has a few posts about it if you do a search. @jesserockz has one.
The jury is still out about my Lolin S2 Mini’s. I seem to be having stability issues but need to do more testing.
1 Like
Are you just using these board settings for the QuinLED? Cheers.
esphome:
name: 'q1_quinled_quad'
platform: ESP32
board: mhetesp32devkit
As @Mahko_Mahko already flagged, the Lolin C3 Mini (v1.0.0 in my case) does not work out of the box.
It did took some trial&error to get it working, but while esp32_ble_tracker is working stable bluetooth_proxy on the other hand will still result in a non reactive state.
In addition, to prevent a bootloop the wifi output_power needs to be set as low as 8.5.
Enjoy the yaml:
esphome:
name: lolin-c3-1_0_0
platformio_options:
board_build.flash_mode: dio
esp32:
board: esp32-c3-devkitm-1
variant: ESP32C3
framework:
type: esp-idf
sdkconfig_options:
CONFIG_ESP_TASK_WDT_TIMEOUT_S: "10"
CONFIG_BT_BLE_50_FEATURES_SUPPORTED: y
CONFIG_BT_BLE_42_FEATURES_SUPPORTED: y
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
output_power: 8.5 # will result in a bootloop otherwise
esp32_ble_tracker:
# bluetooth_proxy: will result in a non reactive state
The Lolin S2 Mini (v1.0.0) took quite some effort as well. No bluetooth support for this ESP32, but it does provide more GPIO and a higher clocked CPU.
Some yaml here as well as the out-of-the-box experience here was also not ok.
esphome:
name: lolin-s2-1_0_0
platformio_options:
board_build.mcu: esp32s2
esp32:
board: lolin_s2_mini
variant: ESP32S2
framework:
type: esp-idf
platform_version: https://github.com/jhamhader/platform-espressif32#8bc085573e4f6986ffcda7050b9607739f3c6976
4 Likes
bluetooth_proxy: will result in a non reactive state
Do you mean that the C3 Mini will not connect to wifi? Because I had this problem. But it works with this config:
note that I have v2.1.0
esphome:
name: salle-a-manger
platformio_options:
board_build.flash_mode: dio
esp32:
board: esp32-c3-devkitm-1
framework:
type: esp-idf
version: recommended
sdkconfig_options:
CONFIG_COMPILER_OPTIMIZATION_SIZE: y
CONFIG_BT_BLE_42_FEATURES_SUPPORTED: y
advanced:
ignore_efuse_mac_crc: false
variant: esp32c3
logger:
api:
password: "some_password"
port: 6053
ota:
password: "some_password"
wifi:
output_power: "8.5"
ssid: "my_ssid"
password: "another_password"
ap:
ssid: "Salle A Manger Fallback Hotspot"
password: "another_password2"
esp32_ble_tracker:
text_sensor:
- platform: ble_scanner
name: "BLE Scanner"
bluetooth_proxy:
active: true
@tom_l
good afternoon… currently, which Esp32 recommends? especially on AliExpress or somewhere in europe
Good morning, sorry to reply for @tom_l , but I imagine his answer is still What's your favourite ESP32 board? (# Best, good, cheap, quality, reliable) - #3 by tom_l
2 Likes
Ditto for me
1 Like
Does anyone know how Quinled stack-up for low power projects?
Like maybe these kind of metrics?
I didn’t spot anything on the extra board details.
I’m also wondering if disconnecting the led is a viable and worthwhile option.
I’m using it for a battery/solar powered/deep sleep project.