Wiring without Breakout Boards

Instructions on how to wire peripherals directly to Skynode without using the breakout boards

The breakout boards shipped with the Evaluation Kit offer flexibility during exploration and prototype phase. For a tighter hardware integration, devices can be wired directly to the Pico-Clasp connectors on Skynode such that the breakout boards become obsolete.

Required tools

• Molex Pico-Clasp connectors

• Pico-Clasp crimp tool

• Pico-Clasp crimp contacts

• Alternatively Pre-crimped Pico-Clasp cables

Schematic

74KB

Picoclasp_Pinout.pdf

pdf

Skynode Pico-Clasp Pinout

Wiring Devices to the Pico-Clasp Connectors

Example: Freefly RTK GPS module

Pin # on GPS JST Connector	Signal	Pin # on Pico-Clasp Primary (J4)
1	VCC_5V	22 *
2	GPS_RX	18
3	GPS_TX	20
4	I2C_SCL	19
5	I2C_SDA	21
6	BUTTON	3
7	BUTTON_LED	5
8	GND	7 *

*There are also other options to chose here as those signals appear multiple times on the Pico-Clasp connector J4. Make sure to use the correct supply voltage for your peripheral. For the GPS this would be VDD_5V_CAN1_GPS1 (pin 22 or 40). For other peripherals check the Datasheet under "Peripheral Power Domains".

Crimp the ends of the GPS cable

Insert the crimped ends to the correct positions on the Picoclasp connector

The I2C pins exist only once one each Pico-Clasp connector. If you would like to connect multiple I2C devices on the same I2C bus you can split the I2C line using a Y-cable