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Revision as of 16:08, 17 October 2026

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ESP8266

2.42" OLED Clock Board

Published

SSD1309, I2C, BLUE

ESP8266 2.42inch OLED Temperature Humidity Clock Board(blue) Main View

ESP8266 2.42inch OLED Temperature Humidity Clock Board(blue) Auxiliary View

Introduction

The ESP8266 2.42" OLED Desk Clock is a multifunctional network clock board from OLIGHKER. Based on the ESP-12F Wi-Fi module, it integrates a 2.42-inch 128×64 OLED display, temperature/humidity and barometric pressure sensors, an RGB status LED, an active buzzer and one-touch Wi-Fi provisioning — usable as a desktop clock and as an entry-level ESP8266 IoT development platform.

Specifications

Hardware Resources
ESP-12F module	Main controller with integrated ESP8266 Wi-Fi / MCU	—
2.42" OLED	128×64 dot-matrix SSD1309 display	I2C 0x3C
AHT20-F	Digital temperature and humidity sensor	I2C 0x38
BMP280	Digital barometric pressure sensor	I2C 0x76/0x77
WS2812B	Full-colour RGB status LED	GPIO12
BEEP	Active buzzer for the alarm	GPIO14
PWR LED	Power indicator LED	—
USER LED	User indicator LED	GPIO2
SELECT button	Short press: change page, alarm snooze/dismiss	GPIO16
BOOT button	Hold 3 s to show the setup hotspot info	GPIO0
RST button	Reset button	—
USB-C	Type-C power + CH340C serial port	—
Expanded I/O	2.54 mm header exposing GPIO pins	See code definitions
4× mounting holes	M3 through-holes for enclosure mounting	—

Hardware

Size

FAQ

Q1:No display after power-on

Check that the USB-C power supply is working; view the boot log at 115200 baud and confirm that the I2C scan finds address 0x3C.

Q2:Cannot open the setup page

Make sure the phone is connected to the DeskClock-XXXXXX hotspot with password 88888888, then open http://192.168.4.1/.

Q3:Wi-Fi reports an authentication failure

reason 15/202/204 means the password or handshake failed; re-enter the password and tap “Connect & continue”.

Q4:The clock keeps waiting for time sync

The device has not connected to an internet-enabled Wi-Fi or NTP is blocked; check that the router allows access to ntp.aliyun.com and pool.ntp.org.

Q5:Weather does not update

Make sure Wi-Fi is online and time sync has completed; the first weather request starts only after 60 seconds of stable connection; TLS errors can be found in the serial log.

Q6:The alarm does not ring

Check that the alarm is enabled and the time is set correctly; in weekdays-only mode it does not trigger on Saturday or Sunday.

Downloads

暂无Published资源，管理员可在产品表单中添加下载文件。

@@ Line 70: / Line 70: @@
 |hardware=[[File:ESP8266 2 42 clock-800-600-3.jpg|center|thumb|800x800px]]
 |usage=[[File:ESP8266 2 42 clock-600-300-1.jpg|center|thumb|600x600px]]
-|faq=; What if unable to enter download mode?
+|faq==== <span style="color: rgb(52, 176, 176);">Q1:No display after power-on</span> ===
-: Check boot button timing, USB driver, and data cable.
+Check that the USB-C power supply is working; view the boot log at 115200 baud and confirm that the I2C scan finds address 0x3C.
-; What if peripheral communication is unstable?
-: Verify logic levels, ground, bus speed, and terminal connections.
+=== <span style="color: rgb(52, 176, 176);">Q2:Cannot open the setup page</span> ===
+Make sure the phone is connected to the DeskClock-XXXXXX hotspot with password 88888888, then open <nowiki>http://192.168.4.1/</nowiki>.
+=== <span style="color: rgb(52, 176, 176);">Q3:Wi-Fi reports an authentication failure</span> ===
+reason 15/202/204 means the password or handshake failed; re-enter the password and tap “Connect & continue”.
+=== <span style="color: rgb(52, 176, 176);">Q4:The clock keeps waiting for time sync</span> ===
+The device has not connected to an internet-enabled Wi-Fi or NTP is blocked; check that the router allows access to ntp.aliyun.com and pool.ntp.org.
+=== <span style="color: rgb(52, 176, 176);">Q5:Weather does not update</span> ===
+Make sure Wi-Fi is online and time sync has completed; the first weather request starts only after 60 seconds of stable connection; TLS errors can be found in the serial log.
+=== <span style="color: rgb(52, 176, 176);">Q6:The alarm does not ring</span> ===
+Check that the alarm is enabled and the time is set correctly; in weekdays-only mode it does not trigger on Saturday or Sunday.
 |displayMode={{{displayMode|详情}}}
 |cardPage={{{cardPage|{{PAGENAME}}}}}