Data Sheet

ESP-12S User Manual
11
4. Absolute Maximum Ratings
Table 6 Absolute Maximum Ratings
Rating Condition Value Unit
Storage Temperature
-40 to 125
℃
Maximum Soldering Temperature
260
℃
Supply Voltage
IPC/JEDEC J-STD-020 +3.0 to +3.6 V
4.1Recommended Operating Conditions
Table 7 Recommended Operating Conditions
Operating Condition Symbol Min Typ
Max
Unit
Operating Temperature
-40 20 125
℃
Supply voltage
VDD 3.0 3.3 3.6 V
4.2.AT commend Testing
1.Hardware connection
As shown in Figure 7, ESP-12S via a USB to TTL Tool connected to the computer, software tool through the serial
port on the computer can be AT instruction test
Figure 7 ESP-12S connect with computer