SENA ProBee-ZE20S-HAOL - Manual (Page 61)

ProBee-ZE20S-HAxx User Guide Rev 1.9 61
List of the existing networks …
OK<CR>
7.5.2 AT+ESCAN or AT+ES
Description
Perform a scanning for energy level of all channels. It can be used to avoid
interference. It can take up to 5 seconds. The RSSI energy level ranges from
approximately -100 to +127 in dBm. (CAUTION: It is possible to cause a link error
if a node is a parent of an end-device.)
Execute AT+ESCAN<CR> AT+ESCAN=<channel mask><CR>
Response
<channel>|<RSSI >
List of the RSSI for each channel …
OK<CR>
7.5.3 AT+DSCAN or AT+DS
Description
Perform a scanning for existing nodes in the current network. A coordinator or
router can have children nodes and they are presented by “CLDn”. It can be
possible to place some conditions such as scan duration, node type and node
name in order. The information of local node is presented by “*”. (CAUTION: A
ProBee-Z*10 with PTv1.2 or earlier cannot receive the response of AT+DSCAN
from any ProBee-Z*10 with PTv1.3 or later. It cannot receive from any ProBee-
Z*20, either. In this case, it is recommended to upgrade PTv1.2 to the latest
version.)
Execute
AT+DSCAN<CR> or
AT+DSCAN=<scan duration><CR> or
AT+DSCAN=<scan duration>,<node type><CR> or
AT+DSCAN=<scan duration>,<node type>,<node name><CR>
Response
<node type>|<IEEE address>|<node ID>|<version>|<product name>|<node
name>
List of the existing nodes and information…
OK<CR>
Range
Scan duration: 1 – 10
Node type: 0 – 4 (Zero indicates all node types.)
7.5.4 AT+RSSI or AT+RS
Description
Get RSSI and LQI information respectively for the delivery of the recent packet
across the last hot of the incoming route. The LQI value ranges from 0 to 255
with the maximum value representing the best possible link quality. The RSSI
value ranges from approximately -100 to +127 with each value representing the
energy level in dBm at the radio’s receiver. The sender of the recent packet and