Pop-UP Clock… now in colour!
The Pop-Up Clock described in a recent post “Pop-Up Clock and Flipper Clock – Magnetic Digit Elements” is a work-in-progress proof of concept as I develop a full 4-digit clock (complete with flashing colon). So far, the design displays the time on this single digit display in a sequential manner: two digits for the hour, then a dash (“-“) followed by two digits for the minutes. Wishing to increase the illumination of the display and the contrast of the segments…
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TIME LOOP Clock: accuracy with celestial connections
Introducing the TIME LOOP Clock Accurate local time with celestial connections The TIME LOOP Clock provides automatic to-the-second time accuracy with a dynamic display that adjusts hues and brightness based on the real-time position of both the sun and moon. The TIME LOOP Clock is a 182mm (7.2″) diameter wall-mounted clock that sports a ring of LEDs used to tell the time. Based on conventional analogue clock faces, hours are displayed as single fixed points of light, minutes fill or…
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NetClock: NTP Synchronized OLED Clock: Update
The NetClock NTP Synchronized OLED Clock is a quick and simple project to exercise your WeMos D1 R2 ESP8266 board and get a super-accurate clock as well! See update below for automatic WiFi connection handling!
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Weatherman: Port to WeMos D1 R2 ESP8266 board
The WEATHERMAN: Web Weather Forecaster original project was built using an Arduino UNO and an Ethernet shield to connect to the web to obtain the forecasted weather information. The need for an Ethernet connection was a severe limitation and the small amount of data RAM of the UNO meant that only three days worth of weather data could be processed…. Bummer! However, my new WeMos D1 R2 WiFi ESP8266 Development Board has oodles of memory so the Weatherman project was…
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Level Shifting: Arduino & ESP8266
Using the ESP8266 WiFi Transceiver module with a 5v Arduino requires the use of level shifting circuitry. A resistor divider (1k and 2k typically) works perfectly well for signals from the 5v Arduino to the ESP8266 3.3v. However, while many people connect 3.3v derived signals directly to a 5v powered input, to maintain good noise margins requires an active interface. While there are several bus drivers available that will perform level translation and buffering (such as the 74LVC245A), they are…
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ESP8266 WiFi Module: Getting started
I have been playing with a new WiFi module that has recently come onto the market – the ESP8266 Serial WIFI Wireless Transceiver Module – that I found on eBay for about 4ドル. This unit promises a lot and at this price is clearly a bargain if it delivers!
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