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Functional description of the evaluation board
1.9.8
Brightness LED
The board features an amber high brightnes LED and its power control circuits.
The brightness can be adjusted by a PWM signal issued by the STM32F30x/31x through
PE13.
The LED supply current can be monitored by the STM32F30x/31x through PD14.
1.9.9
Humidity sensor
The board embeds a humidity sensor HS1101LF. The charge control signal is connected to
timer in STM32F30x/31x through PC8 and measured result of HS1101LF is connected with
PB0.
1.9.10
Temperature sensor
The STM32303C-EVAL evaluation board includes a temperature sensor connected to the
I2C2 peripheral.
1.9.11
Touchsensing buttons
The STM32303C-EVAL evaluation board supports two touchsensing buttons based on
either RC charging or charge transfer technology. The charge transfer technology is enabled
by default.
1.9.12
STM32303C-EVAL board jumper configuration
For the demonstration to run correctly on the board, configure the following STM32303C-
EVAL board jumpers as follows:
●
JP1: fitted
●
JP5: fitted in position 1<->2
●
JP6: fitted in position 1<->2
●
JP11: fitted
●
JP12: fitted
●
JP15: fitted in position 2<->3
●
JP16: fitted in position 2<->3
●
JP17: fitted in position 1<->2
Note:
Set JP16 in BAT position to save time even if the evaluation board is powered off.
10/65
Doc ID 023892 Rev 1
UM1590
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