GPS Frequency Standard

Hardware

• NEO-7M GPS
• Blue Pill Arduino compatible
• OLED Frequency Display
• Rotary Encoder Frequency Selection
• 80x50mm enclosure

Reference Materials

• Design & Build a GPS locked Frequency Standard- Scullcom
• SIMPLE 10 MHZ GPS FREQUENCY STANDARD AND RF GENERATOR
• An Arduino-based GPS Disciplined Oscillator
• Aluminum PCB Instrument Box Enclosure Electronic Project Case DIY 80x50x20mm

GPS

• GPS Satellite Positioning Module NEO7M UBLOX Satellite Positioning 51 SCM STM32
• Specifications:
• Working Voltage: 3.3v-5.0v
• Color: As Picture Shown
• Description:
• With micro USB interface, you can debug GPS module with ordinary phone data cable, no longer need to use USB-TTL and other tools.
• TTL interface is reserved to facilitate the use of USB-TTL or external microcontroller to control and receive GPS information.
• Ceramic antenna on module board, no GPS external antenna can be used to search for stars.
• Reserved SMA antenna interface, can use external antenna, star search ability is stronger.

OLED Display

Description

• OLED display, no need backlight, self-illumination.
• The display performance is better than the traditional LCD display, also lower consumption.

Specifications

• Driver IC: SSD1306
• Size: 0.91 inch OLED
• Resolution: 128 x 32
• Size: 38 * 12 mm
• Number of pins: 4 Pin
• Interface Type: IIC interface
• Display Color: White
• Operating temperature:-40 ~ 85 ℃

I2C Pin Out

1. GND: Power Ground
2. VCC: Power + (DC 3.3 ~5v)
3. SCL: Clock Line
4. SDA: Data Line

Enclosure