!
!
Figure 7: ESP8266EX as used in USB Sensor Demo
1. USB interface is used only for 5V power supply.
2. DC-DC power chip converts 5V input voltage into 3.3V for circuit use.
3. GPIO0 connector. With jumper cap: low; otherwise: high. For switching between
UART Download and Flash Boot mode.
4. GND RXD TXD connector: connect to USB to TTL serial cable for download, print log.
5. Reset button. Hold down the reset button and power on to complete the reset.
6. External metal antenna.
!
!
1.3.3. Smart Light Application (as in Fig. 6 Smart Light Demo)!
PIN Definition for Smart Light Application:
(PIN 9) MTMS — Infrared receiver
(PIN14) GPIO2 — Connect to reset button (Press for 5s to reset)
Three PWM outputs:
(PIN 10) MTDI — Red light control
(PIN 13) MTDO — Green light control
(PIN 12) MTCK — Blue light control
To Next Page
Loading...
