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Lanna calendar clock

นาฬิกาปฏิทินล้านนา

A clock that shows the Lanna day gives a temple, a hotel or a home the northern date at a glance.

Today's price ฿12,000

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What you get

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How it goes

  1. You say where the clock goes: a temple, a hotel or a home.You · First
  2. Hongdam builds a solar-powered clock with an e-ink screen.Hongdam · After you say
  3. The screen shows the Lanna calendar day.The clock · In use
  1. You say where the clock goes: a temple, a hotel or a home.You · First
  2. Hongdam builds a solar-powered clock with an e-ink screen.Hongdam · After you say
  3. The screen shows the Lanna calendar day.The clock · In use

Useful facts

What others charge

Waveshare 7.5-inch e-paper display, 800 × 480US$56.99 waveshare.com
Waveshare e-paper driver board with Wi-Fi and Bluetooth (display not included)US$14.99 waveshare.com
Waveshare solar power module for a 6V to 24V panel (battery not included)US$8.99 waveshare.com
Hongdam · Lanna calendar clock฿12,000

What people ask

Does an e-ink screen need power to hold the picture?

Waveshare's page for its 7.5-inch panel says it keeps the last content for a long time with the power down. It lists 26.4 mW to refresh and under 0.01 µA on standby. waveshare.com

How fast does an e-ink screen change?

For Waveshare's 7.5-inch panel the page lists a full refresh in 4 seconds, a fast refresh in 1.5 seconds and a partial refresh in 0.4 seconds. waveshare.com

What runs an e-ink clock?

Waveshare's 7.5-inch panel fits the 40-pin header of a Raspberry Pi. Its page also lists Jetson Nano, Arduino and STM32 boards, over an SPI connection. waveshare.com

Can a clock run on a solar panel?

Waveshare sells a solar power module for 6V to 24V panels. It charges a 3.7V lithium battery and gives 5V or 3.3V at up to 1A. Its page calls it suited to solar-powered, low-power projects. waveshare.com

When is the Lanna New Year?

The Thailand Foundation says Pi Mai Mueang falls near Songkran in April. The official holiday is 13 to 15 April, and 13 April, the first day, is Wan Sungkan Long. thailandfoundation.or.th

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Small print

Prices here move with demand: when most of a month's places are taken, the price goes up a step; when few are, it comes down a step.

Sources read 2026-11-04.