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#ifndef XBEE_H
#define XBEE_H
void xbee_send(int len, const uint8_t* buf) {
// Start and length.
usart_send(0x7e);
usart_send(((len + 14) >> 8) & 0xff);
usart_send((len + 14) & 0xff);
// Frame type and ID.
usart_send(0x10);
usart_send(0x01);
// Destination address.
usart_send(0x00);
usart_send(0x13);
usart_send(0xa2);
usart_send(0x00);
usart_send(0x40);
usart_send(0x6f);
usart_send(0x19);
usart_send(0xf1);
usart_send(0x00);
usart_send(0x00);
usart_send(0x00);
usart_send(0x00);
uint8_t chsum = 0x80;
// Payload
for(int i = 0; i < len; i++) {
usart_send(buf[i]);
chsum -= buf[i];
}
usart_send(chsum);
}
#endif
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