ElaraGNSSMKRShield
GNSS Shield with Wuerth Elara for Arduino MKR
pin usage
Arduino MKR connector CN1
| Pin | Pin Name | Signal | Description |
|---|---|---|---|
| 1 | AREF | ||
| 2 | DAC0/A0 | ||
| 3 | A1 | ||
| 4 | A2 | ||
| 5 | A3 | ||
| 6 | A4 | ||
| 7 | A5 | ||
| 8 | A6 | ||
| 9 | 0 | WAKE_UP | wake signal to Elara GNSS |
| 10 | 1 | 1PPS | 1PPS signal from Elara GNSS |
| 11 | 2 | ||
| 12 | 3 | ||
| 13 | 4 | ||
| 14 | 5 | ON_OFF | switch Elara GNSS on and off |
| 15 | 6 | ||
| 16 | 7 | ||
| 17 | 8/MOSI | ||
| 18 | 9/SCK | ||
| 19 | 10/MISO | ||
| 20 | 11/SDA | I2C_SDA | to Elara GNSS if I2C option is used |
| 21 | 12/SCL | I2C_SCL | to Elara GNSS if I2C option is used |
| 22 | 13/RX | SERIAL_RX | to Elara GNSS if serial option is used |
| 23 | 14/TX | SERIAL_TX | to Elara GNSS if serial option is used |
| 24 | RESET | ||
| 25 | GND | GND | |
| 26 | VCC | 3V3-rail | supply voltage for board |
| 27 | VIN | ||
| 28 | 5V0 |
SMA connector CN2
SMA coax connector.
| Pin | Signal | Description |
|---|---|---|
| center | 1PPS | |
| shield | GND |
PCB
Top
Bottom
Variants
By default the Elara GNSS is connected via I2C. It is possible to connect to serial.
BOM changes
The following parts need to be changed:
| part | I2C variant | serial variant |
|---|---|---|
| R2 | 10k | DNI |
| R3 | DNI | 10k |
| R9 | 0R | DNI |
| R10 | 0R | DNI |
| R11 | DNI | 0R |
| R12 | DNI | 0R |
Resources
Datasheets
Arduino Libraries
License
This hardware is licensed under the CERN OHL v. 1.2
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