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MeiG Smart product technical information
SLM500 Hardware Design Guide Page 10
Input Device
Reset
Application interface
Interface
name
Main function description
VBAT
4pin，Power input，3.4V～4.2V，Nominal
value3.8V
SDIO *1
TF Card，Support 32GB max
USB
Support OTG
USB_BOOT（Force USB boot for emergency
downloads）
BLSP ports
6 ports(BLSP2-7), 4-bits each, multiplexed serial
interface functions
UART*3
Max up to 4 Mbps
I2C*5
Support
SPI
(master only)
Support
ADC*1
Support
PWM*1
Support
Charge
Max up to 1.44A
Vibrator
Support
GPIO
40 GPIOs，Excluded BLSP multiplexing GPIO.
VCOIN
Real time clock backup battery
RF Interface
Multimode LTE main antenna
Multimode LTE diversity antenna
The GPS antenna
2.4G +5G WiFi/BT antenna
Audio
One main MIC
One noise reduction MIC
One Handsfree speaker.
One earpiece
One stereo headphone.
Accessories versions
Software versions