License

CC-BY 3.0

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Signal Generator, Tiny85, OLED display

5 months ago 137
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
  • Comments

Description

Programmable Signal Generator This project describes a simple digital signal generator capable of generating a square wave from 1kHz to 68MHz with an accuracy of 1.1%. You enter the frequency on a numeric keypad, and the frequency is displayed on an I2C 128x32 OLED display.

Used components: ATtiny85, OpAmp INA331/LTC6904, OLED display (connector JP1/JP3).

Documents

Sheet_1

pcb

BOM

ID Name Designator Footprint Quantity
1 ATTINY85 U2 SOIC127P798X216-8N 1
2 SWITCH-MOMENTARY-2PTH 1,2,4,3,5,6,7,8,9,*,0,# TACTILE-PTH 12
3 HEADER-1X4ROUND JP3-DISP 1X04_ROUND 1
4 M04SMD_RA_FEMALE J1 1X04_SMD_RA_FEMALE 1
5 LTC6904 / INA331DGK U1 MSOP8-0.65-3X3MM 1
6 HEADER-1X6ROUND JP1-DISP 1X06_ROUND 1
7 100n C5 0603-CAP 1
8 22k R6,R2 0805 2
9 3.3k R1 0805 1
10 6.8k R3,R5 0805 2
11 4.7k R4 0805 1

Attachments

Filename Download
SignalGenerator.ino
signalgenerator.jpg
signalgeneratorrear.jpg
signalgenerator_circuit.gif

Members

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