ATmega328p clock with DS3231 calendar

8 months ago 304
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
  • Comments

Description

Simple clock with calendar based on atmega328p MCU and DS3231 real time clock module. Features:

  • clock
  • calendar up to year 2100
  • room temperature sensor
  • 128x64 graphical LCD screen
  • automatic LCD brightness control
  • power saving modes
  • backup Li-Ion battery
  • encoder as user input
  • hold for 5 seconds encoder button to start date time setup

Documents

Sheet_1

BOM

ID Name Designator Footprint Quantity
1 12864B V2.0 LCD2 12864B V2.0 1
2 SC1117-3.3V U5 SOT-223_L6.5-W3.5-P2.30-LS7.0-BR 1
3 TP4056 Module U4 BAT CHARGER (FC-96 TP4056) 1
4 Light Sensor (1-20)k U3 SNR2-3.0 1
5 BUZZER SG1 BUZZER-12MM-NS 1
6 1k R3 AXIAL-0.4 1
7 4.7k R4 AXIAL-0.4 1
8 10k R7 AXIAL-0.4 1
9 100k R1,R8 AXIAL-0.4 2
10 Header-Male J1 HDR-TH_6PIN-V-ROW2-COL3-MALE-PITCH2.54 1
11 1u C1 RAD-0.1 1
12 10pF C2,C3 RAD-0.1 2
13 0.1uF C4 RAD-0.1 1
14 ATMEGA328P_TQFP U1 TQFP32-08 1
15 PEC11R-4015F-S0024 SW1 SW-TH_PEC11R-4XXXF-SXXXX 1
16 16MHz X1 HC-49US_L11.5-W4.5-P4.88 1
17 2N7000-D26Z Q1,Q2 TO-92-3_L4.8-W3.7-P2.54-L 2
18 Li-ion 3.7V B1 BAT-TH_BS-2-1 1
19 3V B2 BAT-TH_BS-2-1 1
20 DS3231SN# U2 SOIC-16_L10.3-W7.5-P1.27-LS10.3-BL 1

Attachments

Filename Download
atmegaClock.hex

Members

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