Code for sensor nodes connected by radio receiver with gateway
Dependencies: mbed WakeUp coapRadioClient DHT11
msg.cpp@3:4ffffdb5230f, 2019-01-25 (annotated)
- Committer:
- Ka_myk
- Date:
- Fri Jan 25 02:01:01 2019 +0000
- Revision:
- 3:4ffffdb5230f
- Parent:
- 0:4c0d384fd5cf
main humidity
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Ka_myk | 0:4c0d384fd5cf | 1 | #include "msg.h" |
Ka_myk | 0:4c0d384fd5cf | 2 | |
Ka_myk | 3:4ffffdb5230f | 3 | #define UINT8_MAX 256 |
Ka_myk | 0:4c0d384fd5cf | 4 | |
Ka_myk | 0:4c0d384fd5cf | 5 | void Msg::construct_data_msg(uint8_t sensor_id, int data, uint8_t *buffer, int buffer_len) { |
Ka_myk | 0:4c0d384fd5cf | 6 | if (buffer_len < 5) |
Ka_myk | 0:4c0d384fd5cf | 7 | return; |
Ka_myk | 0:4c0d384fd5cf | 8 | |
Ka_myk | 0:4c0d384fd5cf | 9 | buffer[0] = sensor_id; |
Ka_myk | 0:4c0d384fd5cf | 10 | for (int i = 4; i > 0; i--) { |
Ka_myk | 0:4c0d384fd5cf | 11 | buffer[i] = data % UINT8_MAX; |
Ka_myk | 0:4c0d384fd5cf | 12 | data /= UINT8_MAX; |
Ka_myk | 0:4c0d384fd5cf | 13 | } |
Ka_myk | 0:4c0d384fd5cf | 14 | } |
Ka_myk | 0:4c0d384fd5cf | 15 | |
Ka_myk | 0:4c0d384fd5cf | 16 | void Msg::deconstruct_data_msg(uint8_t *sensor_id, int *data, uint8_t *buffer, int buffer_len) { |
Ka_myk | 0:4c0d384fd5cf | 17 | if (buffer_len < 5) |
Ka_myk | 0:4c0d384fd5cf | 18 | return; |
Ka_myk | 0:4c0d384fd5cf | 19 | |
Ka_myk | 0:4c0d384fd5cf | 20 | *sensor_id = buffer[0]; |
Ka_myk | 0:4c0d384fd5cf | 21 | *data = 0; |
Ka_myk | 0:4c0d384fd5cf | 22 | for (int i = 1; i < 5; i++) { |
Ka_myk | 0:4c0d384fd5cf | 23 | *data = *data * UINT8_MAX + buffer[i]; |
Ka_myk | 0:4c0d384fd5cf | 24 | } |
Ka_myk | 0:4c0d384fd5cf | 25 | } |