Arduino NANO atmega 328 x1
goldpins 1x15 x2
LCD 16x2 + i2c module
R1,R2,R3 1k8
R4,R5,R6 3k3
R7 10 ohm
U1 LM386
C1 10uf
C3 220 UF
C2 47nF




Firmware for arduino : http://arduitapemarkii.blogspot.co.uk/2016/12/tzxduino-v10.html
How to install firmware to Arduino: http://arduitapemarkii.blogspot.com/2016/12/how-to-change-firmware-on.html