oled

OLED low frequency oscilloscope, bandwidth is DC to 1000Hz. Max sampling rate is 16000 samples per second. An oscilloscope with these specifications has limited use, but it is a good exercise in using OLED display. rWire lib is used for I2C. Inline c used to increase speed of I2C to 400KHz...

The clock uses ATMEGA328 internal timers to get 1 minute time base which is as accurate as the 16MHz crystal. The code works for Arduino Nano and Uno only. Code has inline C for setting the timers, and wire lib for the OLED. The DF Player plays many sound formats. The talking clock can be used...