Hardware Design
Table Of Contents
- Contents
- Table Index
- Revision History
- 1 Introduction
- 2 Package Information
- 3 Interface Application
- 4 Antenna Interfaces
- 5 Electrical Specifications
- 6 Top and Bottom View of Module
- 7 Label description Information
- 8 Packaging
- Appendix
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SIM8200EA-M2 card Hardware Design _V1.01 22 2019-06-27
Electro Magnetic Interference and ripple current from depraving RF performance.
3.2 Voltage Monitor
To monitor the VBAT voltage, the AT command “AT+CBC” can be used.
Note: For more details about voltage monitor commands, please refer to Document [1]
in the
appendix.
3.3 Turn on and off module
3.3.1 FUL_CARD_POWER_OFF#
Module can be powered on by pulling the FUL_CARD_POWER_OFF# pin, which is 3.3V
tolerant，up to high level through GPIO.
FUL_CARD_POWER_OFF# signal is an active low input signal and will turn the module on when
asserted high (≥1.7 V) and will force the module to shut down when asserted low (≤0.2 V). This pin
is 3.3V tolerant and can be driven by either 1.8V or 3.3V GPIO and has been pulled down internal.
Turn ON
SIM8200EA-M2
FUL_CARD_
POWER
_OFF#
MCU
GPIO
(1.8V/3.3V)
Figure 7: Reference power on/off circuit
Note: Module could be automatically power on by connecting FUL_CARD_POWER_OFF# pin
to 3.3 V via 0R resistor directly.
The power-on scenarios are illustrated in the following figure.
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