Is schematic below for Si9243 correct and are 100R and 1N4004 diode necessary ?
Code:
Si9243
+--------+
Arduino pin 0 --------------1|RXK L|8--------------------------------- pin 8 L
| |
2|RXL VBAT|7-----------------+-1N4004 diode-- pin 9 (12v Battery)
| | 560R|
Arduino 5V pin output<-100R-3|VDD K|6-----------------+--------------- pin 4 K
| |
Arduino pin 1 --------------4|TX GND|5--------------------------------- pin 1 GND
+........+