SNMP Environmental Monitor

1#include <Streaming.h>        
2#include <Ethernet.h>          
3#include  <SPI.h>
4#include <MemoryFree.h>
5#include <Agentuino.h> 
6
7 int raw2 =  0;
8 int raw3 = 0;
9 int raw4 = 0;
10 int raw5 = 0;
11 float temp2 = 0;
12  float temp3 = 0;
13 float temp4 = 0;
14 float temp5 = 0;
15
16const char  reg=  "C";                                        //C=Temperature in Centigrade, F=Temperature  in Farenheight
17static byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };  //Mac  Address for Arduino Ethernet Shield
18static byte ip[] = { 192, 168, 111, 33 };                    //IP Address for Arduino Ethernet Shield
19static byte gateway[]  = { 192, 168, 111, 1 };
20static byte subnet[] = { 255, 255, 255, 0 };
21
22const  int a2 = A2;                                     
23const int a3 = A3;   
24const  int a4 = A4;   
25const int a5 = A5; 
26
27
28int term2=0;                                                 
29int  term3=0;                                                 
30int term4=0;                                                 
31int  term5=0;                                                 
32
33 
34
35
36const  char sysDescr[] PROGMEM      = "1.3.6.1.2.1.1.1.0";  // System Description
37const  char sysContact[] PROGMEM    = "1.3.6.1.2.1.1.4.0";  // System Contact
38const  char sysName[] PROGMEM       = "1.3.6.1.2.1.1.5.0";  // System Name
39const char  sysLocation[] PROGMEM   = "1.3.6.1.2.1.1.6.0";  // System Location
40const char  sysServices[] PROGMEM   = "1.3.6.1.2.1.1.7.0";  // System Services
41
42  
43
44//My  Custom OID's
45
46
47const char temperature2[]       PROGMEM     = "1.3.6.1.3.2016.5.0.2";     //Temperature in Celsius
48const char temperature3[]       PROGMEM     = "1.3.6.1.3.2016.5.0.3";     //Temperature in Celsius
49const char temperature4[]       PROGMEM     = "1.3.6.1.3.2016.5.0.4";     //Temperature in Celsius
50const char temperature5[]       PROGMEM     = "1.3.6.1.3.2016.5.0.5";     //Temperature in Celsius
51 
52
53// RFC1213 local values
54
55static  char locDescr[]              = "SNMP Temperature monitoring";                 //  read-only (static)
56static char locContact[50]          = "radio-portal.ru";             
57static char locName[20]             = "ServerRoom";                              
58static  char locLocation[20]         = "Planet Earth";                          
59static  int32_t locServices          = 2;                                             //  read-only (static)
60
61 
62uint32_t prevMillis = millis();
63char oid[SNMP_MAX_OID_LEN];
64SNMP_API_STAT_CODES  api_status;
65SNMP_ERR_CODES status;
66 
67
68void pduReceived()
69
70{
71
72  SNMP_PDU pdu;
73  api_status = Agentuino.requestPdu(&pdu);
74
75  if ((pdu.type  == SNMP_PDU_GET || pdu.type == SNMP_PDU_GET_NEXT || pdu.type == SNMP_PDU_SET)
76    && pdu.error == SNMP_ERR_NO_ERROR && api_status == SNMP_API_STAT_SUCCESS ) {
77
78    pdu.OID.toString(oid);
79  
80
81    if ( strcmp_P(oid, sysDescr ) == 0 )  {
82      if ( pdu.type == SNMP_PDU_SET ) {
83        pdu.type = SNMP_PDU_RESPONSE;
84        pdu.error = SNMP_ERR_READ_ONLY;
85      } else {
86        status = pdu.VALUE.encode(SNMP_SYNTAX_OCTETS,  locDescr);
87        pdu.type = SNMP_PDU_RESPONSE;
88        pdu.error = status;
89      } 
90    } else if ( strcmp_P(oid, sysName ) == 0 ) {
91      if ( pdu.type  == SNMP_PDU_SET ) {
92        status = pdu.VALUE.decode(locName, strlen(locName));  
93        pdu.type = SNMP_PDU_RESPONSE;
94        pdu.error = status;
95      }  else {
96        status = pdu.VALUE.encode(SNMP_SYNTAX_OCTETS, locName);
97        pdu.type  = SNMP_PDU_RESPONSE;
98        pdu.error = status;
99      }
100    } else if  ( strcmp_P(oid, sysContact ) == 0 ) {
101      if ( pdu.type == SNMP_PDU_SET ) {
102        status = pdu.VALUE.decode(locContact, strlen(locContact)); 
103        pdu.type  = SNMP_PDU_RESPONSE;
104        pdu.error = status;
105      } else {
106        status  = pdu.VALUE.encode(SNMP_SYNTAX_OCTETS, locContact);
107        pdu.type = SNMP_PDU_RESPONSE;
108        pdu.error = status;
109      }
110    } else if ( strcmp_P(oid, sysLocation  ) == 0 ) {
111      if ( pdu.type == SNMP_PDU_SET ) {
112        status = pdu.VALUE.decode(locLocation,  strlen(locLocation)); 
113        pdu.type = SNMP_PDU_RESPONSE;
114        pdu.error  = status;
115      } else {
116        status = pdu.VALUE.encode(SNMP_SYNTAX_OCTETS,  locLocation);
117        pdu.type = SNMP_PDU_RESPONSE;
118        pdu.error = status;
119      }
120    } else if ( strcmp_P(oid, sysServices) == 0 ) {
121      if ( pdu.type  == SNMP_PDU_SET ) {
122        pdu.type = SNMP_PDU_RESPONSE;
123        pdu.error  = SNMP_ERR_READ_ONLY;
124      } else {
125        status = pdu.VALUE.encode(SNMP_SYNTAX_INT,  locServices);
126        pdu.type = SNMP_PDU_RESPONSE;
127        pdu.error = status;
128      }
129
130    }
131
132    else if ( strcmp_P(oid, temperature2 ) == 0 )
133    {
134      if ( pdu.type == SNMP_PDU_SET ) 
135      {      
136        pdu.type  = SNMP_PDU_RESPONSE;
137        pdu.error = SNMP_ERR_READ_ONLY;
138      } 
139      else 
140      {
141        status = pdu.VALUE.encode(SNMP_SYNTAX_INT, term2);
142        pdu.type = SNMP_PDU_RESPONSE;
143        pdu.error = status;
144      }
145    } 
146    
147
148  
149        else if ( strcmp_P(oid, temperature3 ) == 0  ) 
150    {
151      if ( pdu.type == SNMP_PDU_SET ) 
152      {      
153        pdu.type  = SNMP_PDU_RESPONSE;
154        pdu.error = SNMP_ERR_READ_ONLY;
155      } 
156      else 
157      {
158        status = pdu.VALUE.encode(SNMP_SYNTAX_INT, term3);
159        pdu.type = SNMP_PDU_RESPONSE;
160        pdu.error = status;
161      }
162    } 
163    
164
165        else if ( strcmp_P(oid, temperature4 ) == 0 ) 
166    {
167      if ( pdu.type == SNMP_PDU_SET ) 
168      {      
169        pdu.type  = SNMP_PDU_RESPONSE;
170        pdu.error = SNMP_ERR_READ_ONLY;
171      } 
172      else 
173      {
174        status = pdu.VALUE.encode(SNMP_SYNTAX_INT, term4);
175        pdu.type = SNMP_PDU_RESPONSE;
176        pdu.error = status;
177      }
178    } 
179    
180
181            else if ( strcmp_P(oid, temperature5 ) == 0 )  
182    {
183      if ( pdu.type == SNMP_PDU_SET ) 
184      {      
185        pdu.type  = SNMP_PDU_RESPONSE;
186        pdu.error = SNMP_ERR_READ_ONLY;
187      } 
188      else 
189      {
190        status = pdu.VALUE.encode(SNMP_SYNTAX_INT, term5);
191        pdu.type = SNMP_PDU_RESPONSE;
192        pdu.error = status;
193      }
194    } 
195    
196
197    else {
198      pdu.type = SNMP_PDU_RESPONSE;
199      pdu.error  = SNMP_ERR_NO_SUCH_NAME;
200    }
201    Agentuino.responsePdu(&pdu);
202  }
203   Agentuino.freePdu(&pdu);
204}
205 
206
207void setup()
208{
209  Ethernet.begin(mac);                     //Initialize Ethernet Shield
210  api_status = Agentuino.begin();              //Begin Snmp agent on Ethernet shield
211  pinMode( A2, INPUT );
212  pinMode( A3, INPUT );
213  pinMode( A4, INPUT );
214  pinMode( A5, INPUT );
215  if ( api_status == SNMP_API_STAT_SUCCESS ) {
216    Agentuino.onPduReceive(pduReceived);
217    delay(10);
218    return;
219  }
220  delay(10);
221}
222
223
224void loop()
225{  
226 
227Agentuino.listen();                                 
228
229float kPinTemp2  = analogRead(a2);                    
230float kPinTemp3 = analogRead(a3);  
231float  kPinTemp4 = analogRead(a4);  
232float kPinTemp5 = analogRead(a5);  
233
234float  terme2=( kPinTemp2/1023.0 )*5.0*1000/10;       
235float terme3=( kPinTemp3/1023.0  )*5.0*1000/10; 
236float terme4=( kPinTemp4/1023.0 )*5.0*1000/10; 
237float terme5=(  kPinTemp5/1023.0 )*5.0*1000/10; 
238
239if ( reg  == "F" ) {
240float terme2=((terme2  ) * 9.0 / 5.0) + 32.0;      
241float terme3=((terme3 ) * 9.0 / 5.0) + 32.0; 
242float  terme4=((terme4 ) * 9.0 / 5.0) + 32.0;  
243float terme5=((terme5 ) * 9.0 / 5.0)  + 32.0; 
244}
245
246 term2=(int)terme2;                                 
247 term3=(int)terme3;
248  term4=(int)terme4;
249 term5=(int)terme5;
250;                               
251}