Watch - Revision history

Adamcolton at 21:05, 29 January 2019

2019-01-29T21:05:27Z

← Older revision		Revision as of 21:05, 29 January 2019
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	A belt clip digital watch. This will be a good smd test. Probably want to order a board.		A belt clip digital watch. This will be a good smd test. Probably want to order a board.

	== Hardware ==		== V1 ==
			=== Hardware ===
	Screen will be the Nokia 5110. I'd like to get just the screen, not the whole module, but I can't seem to find that. Possibly disassemble one, though I can't even find a reference to that.		Screen will be the Nokia 5110. I'd like to get just the screen, not the whole module, but I can't seem to find that. Possibly disassemble one, though I can't even find a reference to that.

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	Maybe add solar cell to charge it?		Maybe add solar cell to charge it?

	== Software ==		=== Software ===
	The AVR will be in sleep mode most of the time to reduce power consumption. It only wakes up occasionally to update the display.		The AVR will be in sleep mode most of the time to reduce power consumption. It only wakes up occasionally to update the display.

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	Can add multiple alarms.		Can add multiple alarms.

	== Possible Extensions ==		=== Possible Extensions ===
	1W LED to use as flashlight		1W LED to use as flashlight

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	I could get a pocket watch case and mount it inside. It would be cool if I could get a rotary encoder connected to the watch knob.		I could get a pocket watch case and mount it inside. It would be cool if I could get a rotary encoder connected to the watch knob.

			== Pocket Watch ==
			More of "someday".

			Pocket watch case. Inside are two displays. What would normally be the winding mechanism is the interface (via a rotary encoder). When the watch is closed, it's in a low power mode. When it's opened, it turns on.

	[[Category:Electronics]]		[[Category:Electronics]]

Adamcolton at 21:00, 29 January 2019

2019-01-29T21:00:11Z

← Older revision		Revision as of 21:00, 29 January 2019
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	Power can be a li-ion cell. This needs a charging IC and a usb port to charge.		Power can be a li-ion cell. This needs a charging IC and a usb port to charge.

			Maybe add solar cell to charge it?

	== Software ==		== Software ==

Adamcolton at 13:55, 16 October 2018

2018-10-16T13:55:43Z

← Older revision		Revision as of 13:55, 16 October 2018
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	Interface could probably use a rotary encoder to reduce the number of buttons needed		Interface could probably use a rotary encoder to reduce the number of buttons needed

			Power can be a li-ion cell. This needs a charging IC and a usb port to charge.

	== Software ==		== Software ==

Adamcolton: /* Possible Extensions */

2018-10-11T16:00:58Z

Possible Extensions

← Older revision		Revision as of 16:00, 11 October 2018
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	Add photoresistor and when it's dark, turn off the display.		Add photoresistor and when it's dark, turn off the display.

			I could get a pocket watch case and mount it inside. It would be cool if I could get a rotary encoder connected to the watch knob.

	[[Category:Electronics]]		[[Category:Electronics]]

Adamcolton: /* Possible Extensions */

2018-10-11T15:49:46Z

Possible Extensions

← Older revision		Revision as of 15:49, 11 October 2018
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	Temperature sensor.		Temperature sensor.

			Add photoresistor and when it's dark, turn off the display.

	[[Category:Electronics]]		[[Category:Electronics]]

Adamcolton: /* Hardware */

2018-10-11T15:26:20Z

Hardware

← Older revision		Revision as of 15:26, 11 October 2018
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	Need a small buzzer.		Need a small buzzer.

			Interface could probably use a rotary encoder to reduce the number of buttons needed

	== Software ==		== Software ==

Adamcolton: Created page with "A belt clip digital watch. This will be a good smd test. Probably want to order a board. == Hardware == Screen will be the Nokia 5110. I'd like to get just the screen, not th..."

2018-10-11T15:07:47Z

Created page with "A belt clip digital watch. This will be a good smd test. Probably want to order a board. == Hardware == Screen will be the Nokia 5110. I'd like to get just the screen, not th..."

New page

A belt clip digital watch. This will be a good smd test. Probably want to order a board.

== Hardware ==
Screen will be the Nokia 5110. I'd like to get just the screen, not the whole module, but I can't seem to find that. Possibly disassemble one, though I can't even find a reference to that.

Use a DS3231 real time clock IC.

MCU will be AVR.

Need a small buzzer.

== Software ==
The AVR will be in sleep mode most of the time to reduce power consumption. It only wakes up occasionally to update the display.

Basic function displays the date and time. A nice touch would be to display unix time.

Can add multiple timers.

Can add multiple stop watches.

Can add multiple alarms.

== Possible Extensions ==
1W LED to use as flashlight

Adding a laser diode would be nice.

Temperature sensor.

[[Category:Electronics]]