- Model Number:stack extension board, Stackable shields
- Type:integrated circuit, Drive IC
- Place of Origin:Guangdong, China
- Brand Name:MIC
- D/C:stack extension board, Stackable shields
- Brand:MIC
- Category:Electronic Module
- Lead Free Status:Lead free / RoHS Compliant
- Condition:Brand New With Original Manufacturer
- Maximum Operating Temperature:-40°C ~ 125°C
- Warranty:360days
- Dissipation Power:1W-6W
- Application:Watch
stack extension board, Stackable shields
The Shield expansion board inserted directly in the main control panel, communication capabilities can be extended. While the expansion board is stackable and can be stacked on the basis of the expansion board (such as Ethernet expansion board, rocker expansion board, key expansion board, etc.), and more features.
The module along with master-slave function, can be based on user needs freely through the AT command set, the default mode, baud rate 38400, paired 1234, the data is passed through the serial port and the main development board communication.
Development Board only one hardware serial port, when you want to use the serial port back to fight the information to the PC while with serial control module will trouble debugging. The expansion module good solution to this problem, you can choose D0 ~ D7 any pin is connected to the module with the provided software serial library control module can be used outside the hardware serial IO hardware serial port can be used to debug information to communicate with the PC, back to playing. Onboard toggle switch module is used to manually set the control level for the AT mode. The jump cap can select module control pin is connected to the pin with IO software control or connected to the toggle switch hardware control.
Examples:
This module has three serial links to communicate and motherboard,
First: direct serial control, need to remove the motherboard master IC DIN to RX_H (D0), DOUT to TX_H (D1) for the hardware serial port to pass. Figure:
Second: indirectly serial link way, and talk about the complete AT command code burned into the master by the master data is read into the write to the module, link to DIN to TX_H (D1), the DOUT to RX_H (D0) But times way will occupy its own serial port to prevent monitor from the Monitor debug print, ask your code is complete and correct. Is generally not recommended. Figure:
Third: the software serial link way, this method is the most flexible, using the official software serial library, we can specify any two IO for TX and RX. Through software serial andmodule to interact at the same time, we can also promised to information through the hardware serial Monitor tool monitoring, set by hardware serial module. Remove D0, D1, D2-D7 IO can freely set for software serial port. Here we use the D2, D3
There are many interesting modules are listed as following, more funny parts cann't finish here, pls contact us for detail! Thanks!
