Arduino Projects of note: Difference between revisions
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Picked up a soil moisture sensor: | Picked up a soil moisture sensor: | ||
[[Image: | [[Image:sku_200142_1.jpg]] | ||
It's based on a lm393 voltage comaparator. Many variation exist, for things like sound and light aswell. | It's based on a lm393 voltage comaparator. Many variation exist, for things like sound and light aswell. | ||
Revision as of 14:36, 3 December 2014
- cheap good rtc http://www.dx.com/p/ds3231-high-precision-real-time-clock-module-blue-3-3-5-5v-222910#.VGg-R_nF98E
RTC
I have some zs-042 RTC , it has a DS3231 RTC and what looks like an ATmega32 on it.
LCD
Liquid Crystal Display
Some notes:
Voltage Comparator Based Sensor
Picked up a soil moisture sensor:
It's based on a lm393 voltage comaparator. Many variation exist, for things like sound and light aswell.
This is an analog to digital sensor NOT a 1 wire sensor, so it soaks up an analog pin.
Resources:
Arduino Code example:
http://arduino-info.wikispaces.com/Brick-LightSensor-Analog-Digital
LM 393 Datasheet:
http://www.ti.com.cn/cn/lit/ds/symlink/lm293-n.pdf
