Wave IoT GSM E-Paper Board for Pi

This is a Raspberry Pi IoT driver board for e-Paper raw panels. It allows getting text/image data from IoT clouds through NB-IoT/eMTC/EDGE/GPRS network connection, and then display them on the e-Paper.



The HAT features an onboard SIM7000E module, controlled via UART, supports NB-IoT/eMTC/EDGE/GPRS communication. The e-paper interface is controlled via SPI, compatible with various Waveshare SPI e-Paper raw panels. The HAT also supports Raspberry Pi series boards using standard Raspberry Pi 40-PIN GPIO extension header.

Quick Spec

• Communication interface: UART + SPI (4-wire SPI by default, switch to 3-wire SPI by soldering)
• Communication Module: SIM7000E
• Quad-Band LTE-FDD B3/B8/B20/B28
• GPRS/EDGE 900/1800Mhz
• GNSS (GPS, GLONASS, BeiDou, and Galileo, GNSS antenna is required and NOT included)
• Support SIM card: NB-IoT specific card, or 1.8V/3V normal SIM card
• Applicable region: China mainland, southeast Asia, Europe, Africa, Australia, etc. (for reference only, please check the supported bands according to your local service provider)
• Power supply voltage: 5V
• Logic level: 5V / 3.3V
• Applicable battery: 3.7V lithium battery via PH2.0 connector (NOT included)
• Dimensions: 56.5mm x 65mm
• Weight: 43g

Board Layout

1. SIM7000E communication module
2. MP1482 power chip
3. TXS0108E voltage translator
4. TXB0104PWR voltage translator
5. Raspberry Pi GPIO connector: for connecting Raspberry Pi
6. SIM7000E and e-Paper control pins: for connecting with host control boards like STM32
7. SIM Card Slot: for SIM cards with compatible bands
8. e-Paper Interface: for connecting e-Paper, compatible with various Waveshare SPI e-Paper raw panels
9. USB Port: control the SIM7000E module by AT commands through the USB port
10. LTE Antenna Connector: connects LTE antenna for NB-IoT/eMTC/EDGE/GPRS communication
11. GNSS Antenna Connector: connects GNSS antenna (IPEX connector, NOT included) for GPS/BeiDou/GLONASS/Galileo positioning
12. 3.7V Lithium Battery Port: provides power to SIM7000E module or external 3.3V system
13. LED Indicators
• NET: network status indicator
• Charge: charge indicator, light up when charging, off when fully charged
• Warning: battery reverse connection warning
14. PWRKEY Button: SIM7000E on/off
15. BOOT Button: enable battery power supply
16. SIM7000E Power Supply Selection: the SIM7000E can be powered from Raspberry Pi 5V or lithium battery 3.7V
17. e-Paper Configuration: configured according to the connected e-Paper
• A: for 1.54inch e-Paper, 2.13inch e-Paper, and 2.9inch e-Paper
• B: for other e-Paper
18. Operating Voltage Selection: 3.3V or 5V
19. SPI Selection
• 0: enable 4-wire SPI (default)
• 1: enable 3-wire SPI

Resources

• Product Page
• Product Wiki
• Schematic
• Demo Code for Raspberry Pi

Shipping List

• 1 x e-Paper NB-IoT/GPRS HAT
• 1 x LTE full bands PCB antenna
• 1 x e-Paper Adapter
• 1 x 24PIN FFC
• 1 x 2×20PIN female pinheader
• 1 x RPi screws pack (2pcs)