Description: Offered is my first prototype for a large digit thermometer. The digits are about 1.5" tall. It contains the following components: 1 - Arduino MEGA 2560 4 - Adafruit ST7789 240 x 320 2.0" TFT LCD 1 - MEGA-compatible prototyping shield 1 - DS18B20 One-Wire temperature sensor 1 - 32gb Micro-SD card with bitmaps for the digits This thermomter displays the temperature in degrees Farenheit only; the color of digits changes based on the temperature range: Blue: less than 0.0 Dark Cyan: 0.0 - 32.9 Cyan: 33.0 - 65.9 Green: 66.0 - 75.9 Yellow: 76.0 - 85.9 Orange: 86.0 - 95.9 Red: 96.0 or greater The Micro-SD card containing the bitmaps for the digits is in the slot on the back of the left-most display. The current version of the software allows up to 4 temperature sensors in parallel, they'll be averaged together for the final display value. It comes with one sensor in the socket; it is recommended to build a remote sensor(s) as the socketed one picks up a lot of heat from the electronics. It has an ambient light sensor for dimming the display brightness in low-light conditions. A thumb drive will be included that contains the photos, software source code, digit bitmap files, and instructions on how to create the digit bitmaps. The source code requires Arduino's IDE and Adafruits libraries. Although it works, more or less*, it is being offered for parts only - no warranty, expressed or implied, is given and no guarentee as to usability or reliability. A 5 VDC AC adaptor will NOT be included with the thermometer. Also, there are no wiring diagrams or technical support of any kind. Buyer pays shipping. 7.125"w x 4.0"h x 3.625"d 8.9oz *After several days of continuous use, one or more of the bitmap files on the Micro-SD card will become corrupted. Also, some of the Dupont connectors have started to oxidize, making it necessary to wiggle or disconnect/reconnect to get things working. And it's a little dusty after 2 years sitting on the shelf unused.
Price: 50 USD
Location: Lafayette, Indiana
End Time: 2024-11-10T01:31:46.000Z
Shipping Cost: N/A USD
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Item Specifics
All returns accepted: ReturnsNotAccepted
Type: Electronics Hobby
Subject: Arduino, Adafruit
