3.6 Function blocks
3.6.1 Power supply
The mini evaluation board can be powered either by TTL-232R-3V3 cable or by an external
power supply. The table
lists the connection for different power supply options.
Nr.
Power supply
Connector
I_Meas
jumper
Solder
bridge
I_Meas
current
meas.
Supported
modules
1
TTL-232R-3V3
cable
P3
Open
Connected
No
Proteus-III /
Thyone-I /
Setebos-I
2
TTL-232R-3V3
cable
P3
Set
disconnected
Yes
Proteus-III /
Thyone-I /
Setebos-I
3
External supply
P3 Pin-3 (5V)
P3 Pin-1
(GND)
Set
disconnected
Yes
All
4
External supply
P5 (GND) P6
(VDD)
Open
Open
No
All
Table 18: Power supply option
By default solder bridge is connected and pin headers are not assembled.
3.6.1.1 Connector P3, power supply through TTL-232R-3V3
The evaluation board can be sourced by TTL-232R-3V3 cable through P3 connector. TTL-
232R-3V3 cable powers the board with 5V supply. The integrated voltage regulator regulates
the connected voltage 5V down to 3.3V and supplies the remaining parts of the circuit. If the
module is sourced, the power
Power LED
lights up.
3.6.1.2 Connector P3, power supply through external source
The evaluation board can be sourced by an external power supply through the P3 connector
Pin-3 (5V) and P3 Pin-1 (GND). If the module is sourced, the power
Power LED
lights up.
3.6.1.3 Connectors P5 and P6, power supply through external source
The development board can be sourced by an external power supply through the P5 (GND)
and P6 (3.3V) connector. If the module is sourced, the power
Power LED
lights up.
Mini evaluation board user manual version 1.3
© June 2021
www.we-online.com/wireless-connectivity
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