(1) 0.91” OLED Module: DTMF display can display up to 32 characters (16 per line).

(2) It can auto clear on a timed basis(6 seconds) from receipt of the last character.

(3) It can display DTMF SET (0,1,2,3,4,5,6,7,8,9,* ,#,A,B,C,D).

(4) The product needs to be assembled and soldered by yourself.

(5) Power Circuit (Vin=7V~16V,10mA)


 

BOM List:

 Item

Quantity

Note

IC MCU   

1

DIP 16

IC MT8870

1

DIP 18

OLED

1

0.91”

78L05              

1

TO-92

Crystal 3.58MHz     

1

 

100K Resistor     

2

1/8W,100K~150K

390K Resistor

1

1/8W,330K~390K

100uF

1

10uF/47uF

0.1uF              

3

104

PIN Header        

1

PCB               

1

33 x 39 mm.



The buyer needs the basic electronic  knowledge and ability of  assembling and soldering.