Ethernet with Snmp (enet_snmp)

Compatibility: Eagle 50E, 100

SNMP and WebServer Application using lwIP.

The lwIP private MIB (enterprises.26381) currently has 10 sensor IDs defined but can be easily changed to support many more.

The demo currently uses the first 4 sensor IDs:

enterprises.26381.1.1.1.1.
  0 - LED at PE1 (read/write)
  1 - User button at PA6 (read only)
  2 - Nibble PB0-3 configured as input (read only)
  3 - Nibble PC4-7 configured as output (read/write)

Representative commands (board at 192.168.1.220):

snmpwalk -v 1 -c public 192.168.1.220
  List all base MIBs
snmpwalk -v 1 -c public 192.168.1.220 enterprises
  List all private MIBs
snmpget -v 1 -c public 192.168.1.220 sysContact.0
  Get contact information
snmpset -v 1 -c public 192.168.1.220 sysContact.0 s "This email address is being protected from spambots. You need JavaScript enabled to view it. "
  Set contact information
snmpget -v 1 -c public 192.168.1.220 enterprises.26381.1.1.1.1.0
  Get current LED state
snmpset -v 1 -c public 192.168.1.220 enterprises.26381.1.1.1.1.0 i 0
  Turn LED off
snmpset -v 1 -c public 192.168.1.220 enterprises.26381.1.1.1.1.0 i 1
  Turn LED on
snmpset -v 1 -c public 192.168.1.220 enterprises.26381.1.1.1.1.3 i 10
  Set nibble PC4-7 to '1010'

References:

To execute the sensor IDs you can use the command line net-snmp tools for Windows from

1. http://www.net-snmp.org/download.html