L76K GPS HAT for Raspberry Pi

L76K GPS Raspberry Pi HAT supports GPS, BeiDou, GLONASS, QZSS, and A-GNSS

Waveshare has recently introduced the L76K GPS HAT, a Raspberry Pi-compatible HAT that supports multiple GNSS systems, including GPS, BeiDou, GLONASS, QZSS, and AGNSS for accurate location tracking and navigation. The HAT also supports a low-noise amplifier (LNA) for improved reception, a SAW filter for noise reduction, and offers fast TTFF with a cold start time of 30 seconds and a hot start of just 2 seconds. Communication is done via UART, and the module supports a maximum update rate of up to 5Hz. Powered by a 5V supply, it consumes less than 55mA. On top of that, there is an onboard battery holder that preserves ephemeris data for quicker fixes. L76K GPS HAT specifications: Compatibility Raspberry Pi Model A, Model B, Zero, and other compatible SBCs with a 40-pin Raspberry Pi GPIO header Devices with a USB port GNSS Module – Quectel GNSS L76 module with AT6558R chipset Receiver […]

Sparkfun ZED-F9R GPS RTK

Sparkfun Launches the ZED-F9R GPS Dead Reckoning Raspberry Pi pHAT for Mobile Robots

The SparkFun ZED-F9R GPS pHAT module is targeted at single board computers like the Raspberry Pi, Jetson Nano, and other boards with the 2 x 20mm header form factor supporting the GPS RTK (Real-time kinematic) capable of centimeter-level accuracy. Dead Reckoning in robotics allows one to calculate one’s position by using a previously known location or landmarks. Dead Reckoning is an essential aspect of robot navigation, especially Autonomous vehicles like mobile robots or  UAVs. For dead Reckoning to be realistic and minimize the position uncertainty, it usually requires the fusion of position estimation sources like Lidar, Radar, IMU, Odometry, GNSS, accelerometer, and some others. Sparkfun understands this and has launched the Dead Reckoning add-on module that can be used for applications in mobile robots, UAVs, and others. The Sparkfun ZED-F9R GPS pHAT is an exciting sensor fusion board (having been a fan of Extended Kalmar Filter) that provides accurate and […]


How to Use 3G and GPS on Raspberry Pi with ThaiEasyElec 3G HAT Expansion Board

Venus Supply is an embedded systems company based in Bangkok, Thailand that sells products through their ThaiEasyElec website/brand, as well as a act as a local distributor for popular DIY electronics items. I previously tested their ESPino32 ESP32 board, and the company has now send me another of their new product called “3G HAT Expansion for Raspberry Pi” and based on Quectel UC20-G that support 3G and GPS/GLONASS connectivity globally, meaning it should work in any country with 2G or 3G coverage. After listing the specifications, going through unboxing and assembly with a Raspberry Pi 2/3 board, I’ll write some quick start guide to show what I had to do to use GPS and connect to 3G with a Hologram SIM card. 3G HAT Expansion for Raspberry Pi Specifications Quectel UC20-G wireless module supporting Cellular 3G – UMTS @ 800/850/900/1900/2100 MHz 2G – GSM @ 850/900/1800/1900 MHz Data – HSPA+ […]

Dragino LoRa/GPS HAT Board for Raspberry Pi Sells for $32

There are several ways to play with LoRaWAN protocol on the Raspberry Pi including RisingHF Discovery kit or Cooking Hacks LoRa Shield for Raspberry Pi, but the latter requires you to spend close to $100 just for the shield, the complete Lora discovery kit costs close to $400. Dragino Tech LoRa/GPS HAT board should be a more cost effective way to get started with LoRa on Raspberry Pi, as it sells for $32 + shipping on Tindie. Dragino LoRa/GPS HAT specifications: Connectivity LoRa Semtech SX1276/SX1278 transceiver @ 433/868, or 915 MHz (Country dependent, pre-configured in the factory) 168 dB maximum link budget. +20 dBm – 100 mW constant RF output vs. +14 dBm high efficiency PA. Programmable bit rate up to 300 kbps. GPS L80 GPS module based on Mediatek MT3339 SoC Horizontal Position Accuracy: autonomous <2.5 m CEP. TTFF@-130dBm with EASY (AGPS): Cold Start <15s,Warm Start <5s,Hot start <1s; […]

Pi Slate

Pi Slate – A Raspberry Pi 5 handheld Linux cyberdeck with a 5-inch 1280×720 touchscreen display

We previously wrote about Carbon’s CyberT, a Blackberry-style Raspberry Pi CM4 handheld Linux cyberdeck designed for Kali Linux and penetration testing. The company, now operating under the CyberArch/Carbon Computers brand, has introduced the Pi Slate, a more powerful handheld cyberdeck designed for portable computing and security-focused applications. Built around the Raspberry Pi 5, the Pi Slate integrates a 5-inch 1280×720 touchscreen, a backlit RGB keyboard with an integrated cursor, and a 10,000 mAh battery for 3–5 hours of portable use in a compact enclosure. It supports modular expansion for HATs such as LoRa, SDR, AI accelerators, and M.2 storage, and includes cooling support, antenna mounts, and an optional modular back with a kickstand. It targets penetration testers, IT professionals, and field technicians needing a compact, preconfigured system for cybersecurity and field work. Pi Slate specifications: SBC – Raspberry Pi 5 with 2GB, 4GB, 8GB, or 16GB LPDDR4X RAM options Storage […]

Raspberry Pi RP2350 board NB-IoT cellular

Raspberry Pi RP2350 board offers NB-IoT cellular connectivity, GNSS, and Wi-Fi indoor location

Challenger+ RP2350 NB-IoT is a Feather-compatible board pairing a Raspberry Pi RP2350 microcontroller and a certified NB-IoT cellular module with built-in GNSS, suitable for long-range, low-power connectivity. It looks to be a variant of the earlier Challenger+ RP2350 WiFi6/BLE5 board that replaces an ESP32-C6 WiFi 6, BLE, and 802.15.4 module with an STMicroelectronics ST87M01 NB-IoT and GNSS module. It still offers Challenger+ RP2350 NB-IoT specifications: Microcontroller – Raspberry Pi RP2350A MCU CPU Dual-core Arm Cortex-M33 processor @ 150MHz Dual-core 32-bit RISC-V processor @ 150MHz Up to two cores can be used at a given time Memory – 520KB internal RAM 8KB OTP Storage Package – QFN-60; 7×7 mm Memory – 8MB PSRAM Storage – 8MB SPI flash Cellular connectivity Module – STMicro ST87M01-1301 LTE Cat NB2 (NB-IoT), 3GPP Release 15 Worldwide regional bands coverage – B1, B3, B5, B8, B20, and B28 Single-tone / Multi-tone / Extended TBS and 2 […]

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FoBE IDEA Mesh Tracker C1

FoBE IDEA Mesh Tracker C1 – An nRF52840-based LoRa GPS tracker with sensors, OLED, knob, and more

Designed by FoBE Studio in China, the FoBE IDEA Mesh Tracker C1 is a LoRa-powered off-grid communication device designed for outdoor GPS tracking, sensor data exchange, and mesh networking in remote environments.  Built around the Nordic nRF52840 MCU, it integrates LoRa, GPS, BLE, and motion sensors, making it suitable for location tracking, environmental monitoring, and off-grid communication projects. The device integrates a GPS module, LoRa transceiver, 0.96-inch OLED display, buzzer, a 3-axis accelerometer, and a 3-axis gyroscope. Other ports include a USB-C port, reserved SWDIO/SWCLK headers, an 8-pin GPIO expansion header, and dual IPEX connectors for LoRa and GPS antennas. There is also a rotary encoder and two user buttons, and two indicator LEDs for controls and status feedback. Power input is provided via a 2-pin MX1.25 battery interface for portable, battery-powered outdoor IoT applications. FoBE IDEA Mesh Tracker C1 specifications: SoC – Nordic Semiconductor nRF52840 CPU – 32-bit Arm Cortex-M4F […]

Chipsee PPC-CM5-156 review

Chipsee PPC-CM5-156 Review – Part 2: A Raspberry Pi CM5 fanless Panel PC tested with Raspberry Pi OS

We’ve already had a look at the hardware of Chipsee’s 15.6-inch industrial touch panel PC in the first part of the review, before booting it to Raspberry Pi OS. I’ve now had time to test most features of the PPC-CM5-156 panel PC running Raspberry Pi OS, so I’ll report my experience testing performance and most ports of the Raspberry Pi CM5-based system in the second part of the review.

PPC-CM5-156 panel PC system info and sbc-bench.sh benchmark

Let’s check the features of the PPC-CM5-156 panel PC using the inxi utility:

Boardcon MINI1126B-P AI vision system-on-module wit Rockchip RV1126B-P SoC