User Guide
29 of 35
002-36452 Rev. **
2022-10-07
CYW920819M2EVB-01 evaluation kit user guide
Hardware
3.7
External serial flash
CYW920819M2EVB-01 has a GigaDevice GD25WQ64ENIG is the 64-Mbit serial flash on the baseboard, which can
be useful when the user application requires more memory. The BT SDK is compatible with most JEDEC CFI-
compliant SPI flash ICs. The SPI driver should configure the respective pins in the user application in order to
use the onboard serial flash.
Figure 22
External serial flash
3.8
Ambient light sensor
CYW920819M2EVB-01 has an onboard light-to-digital sensor (Texas Instruments OPT3002DNPT). It has a wide
spectral bandwidth, ranging from 300 nm to 1000 nm. Measurements can be made from 1.2 nW/cm
2
up to
10 mW/cm
2
. The CYW20819 device communicates with this sensor over I
2
C. The I
2
C address is 0x4D for high 0x4C
for low. See the OPT3002DNPT datasheet for more details.
Figure 23
Ambient light sensor circuit