Kimx Micro Raspberry Pi Zero Alternative
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Raspberry Pi Zero Sized Kimχ Micro SBC is Equipped with a Quad-Core Processor, an mPCIe Slot

The Raspberry Pi Zero (W/WH) board is great because of its size, price tag, and software support, but processing power is limited with Broadcom BCM2735 SoC only offering a single ARM11 core clocked at 1 GHz. There are already some more powerful boards in a similar form factor include Banana Pi M2 Zero or FriendlyELEC NanoPi Duo2 both equipped with an Allwinner quad-core Cortex-A7 processor, but there’s another upcoming board with NXP i.MX 8M Mini quad-core 64-bit Cortex-A53 processor. Meet Kimχ Micro (pronounced Kimchi Micro). Kimχ Micro (preliminary) specifications: SoC – NXP i.MX 8M Mini single to quad-core Cortex-A53 processor @ up to 1.8 GHz, Cortex-M4F real-time core @ up to 400 MHz, Vivante GC NanoUltra 3D GPU + GC320 2D GPU, VPU for 1080p60 video decoding and encoding; (Single and dual-core version of NXP i.MX 8M Mini processor are also compatible) System Memory – 2GB LPDDR4 Storage – 8GB […]

Qoitech Otii Arc Raspberry Pi 4
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Getting Started with Qoitech Otii Developer Tool using ESP8266 and Raspberry Pi 4 Boards

Last month, I received Qoitech Otii Arc power supply, power meter, and DAQ unit that aims at helping hardware and software engineers develop energy-efficient products. I’ve now had time to test the unit with an ESP8266 board and Raspberry Pi 4 SBC, so I’ll show how to get started and my overall experience with the hardware and program. Requirements and Initial Setup The unit takes a 9V power supply or micro USB adapter as power input, but power output is done through banana plugs. I did not have any cables with banana plugs so I bought one on eBay for about $5 shipped. This cable is really convenient with output to USB (female connector), crocodile clips, and hook clips. However, as we’ll see below it may not be suitable for all types of loads, and you may have to make your own with a higher rated cable. You’ll need to […]

ArmSoM RK3588 AIModule7 NVIDIA Jetson Nano-compatible SOM
SX1302 Mini PCIe LoRaWAN Concentrator Card
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n-Fuse SX1302 Mini PCIe LoRaWAN Concentrator Card to Sell for 100 Euros

Semtech SX1302 LoRa transceiver was announced in Q3 2019 as an updated to the company’s SX1301 LoRaWAN gateway chip with improved efficiency, lower BoM costs, and the ability to handle more traffic. At the time, the company also showcased a mini PCIe LoRaWAN concentrator card reference design pairing SX1302 with SX1250 sub-GHz RF front end, and that could be connected to a Raspberry Pi board via an interface board. n-Fuse has now come up with a commercial product adapted from the reference design with LRWCC2-MPCIE SX1302 Mini PCIe concentrator card designed for LoRaWAN gateways. n-Fuse LRWCC2-MPCIE key features and specifications: MCU – STMicro STM32 (no details provided) LoRa Connectivity Semtech SX1302 digital baseband processor with 2xSX1250 and 1xSX1261 Tx/Rx front-ends Frequency Range – 863 to 870 MHz or 915 to 928 MHz Sensitivity <= -124dBm at SF7, BW 125KHz <= -138dBm at SF12, BW 125kHz <= -125dBm at SF7, BW […]

Raspberry Pi vs Arduino vs ESP8266 / ESP32
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Know the Differences between Raspberry Pi, Arduino, and ESP8266/ESP32

CNXSoft: This is a guest post written in collaboration with SurfShark. When it comes to choosing a platform for STEM education or hobbyist projects, there are a number of low-cost, compact maker boards on the market. The most popular include the kid-friendly Raspberry Pi SBC that was designed with children in mind, Arduino boards for electronics projects, and more recently boards and modules based on EspressifESP8266 and ESP32 wireless SoC’s. In this post, we’ll look at the use cases and strong points for each of the boards whether you are just dabbling in the hobby of coding and DIY electronics, or you have a commercial project. Raspberry Pi The Raspberry Pi is a lineup of single-board computers (SBCs) that are from the UK and were first introduced in February 2012. These small computers were initially designed to teach students the basics of computer science, but they’ve found their way into […]

SX1302 Raspberry Pi Gateway
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Semtech SX1302 LoRa Transceiver to Deliver Cheaper, More Efficient Gateways

After our interview with Rak Wireless CEO, we received a comment inquiring about the availability of SX1302 gateways. Semtech so far had two LoRa transceivers for gateways namely SX1301 and SX1308, but I had never heard about a third one. Semtech SX1302 is brand new, the latest generation of baseband LoRa chip for gateways that is said to reduce current consumption in order to simplify the thermal design of gateways, as well as the BoM (bill of materials) costs), while being capable of handling a higher amount of traffic. Semtech SX1302 LoRa Transceiver Key features: Up to -141 dBm sensitivity with SX1250 Tx/Rx front-end 125 kHz LoRa reception with: 8 x 8 channels LoRa packet detectors 8 x SF5-SF12 LoRa demodulators 8 x SF5-SF10 LoRa demodulators 125 /250 / 500 kHz LoRa demodulator (G)FSK demodulator Direct interface to Semtech transceivers SX1255, SX1257 and SX1250 SPI host interface Single 32 MHz […]

MRK WAN 1310
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Arduino MKR WAN 1310 LoRa Board Gets HW Security, Longer Battery Life and a 2MB SPI flash

Two year ago Arduino launched MKR WAN 1300 board powered by Arduino Zero compatible Microchip Atmel SAMD21 32-bit ARM Cortex M0+ MCU and a Murata CMWZ1ZZABZ LoRa module based on Semtech SX1276 and STMicro STM32L microcontroller. The company has now announced a new improved LoRa board – MKR WAN 1310 – with lower power consumption thanks to a new battery charger , a 2MB SPI flash  which enables data logging and other OTA (Over-the-Air) functions, and a crypto chip that can securely store credentials and certificates. Specifications: MCU – Microchip Atmel SAMD21 32-bit ARM Cortex M0+ MCU @ 48 MHz with 32 KB SRAM, 256 KB flash (8KB for bootloader) External Storage – 2MB SPI flash Digital I/O Pins – 8x digital I/Os, 12x PWM, UART, SPI, and I2C, 8x external interrupts Analog Pins – 7x analog inputs (8/10/12-bit ADC), and 1x analog output (10-bit DAC) DC Current per I/O […]

Rockchip RK3568, RK3588 and Intel x86 SBCs and SoMs in 2025
GW-01 Orange Pi Zero H2+ LoRa Gateway
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M2M-IoT GW-01 LoRaWAN Gateway is equipped with Orange Pi Zero H2+ SBC

M2M-IoT has developed a new LoRa gateway. The gateway, GW-01, is based on Orange Pi Zero H2+ board. While it is new, it has a lot of useful features. The new GW-01 gateway operates in the 868MHz or 915MHz LoRa frequencies and has -139 dBm sensitivity. Furthermore, the GW-01 is fully functional. It is also an open source low-cost solution to developing a LoRaWAN network. In addition, the gateway supports both OpenWrt, and Armbian distributions, and you’ll find documentation for both on Github. Another great thing about the gateway is that it has two boards. Also, the first board, which is on top, is based on SX1301. This 8 channel LoRa concentrator implements the LoRa physical interface. Now, the second board is at the bottom.  It is also the model that the whole gateway was based on. This board is the OrangePi Zero H2+ 256MB (RAM) development board. The gateway […]

Indoor Multi-channel LoRaWAN Gateway
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The Things Industries Announces $69 Indoor Multi-Channel LoRaWAN Gateway

If you ever see a cheap LoRaWAN gateway, chances are that it is a single channel gateway such as Dragino LoRa gateways that can be purchased for as low as $56. Those will work for your private network, but if others people try to use your gateway, some LoRa nodes will fail to connect. So what you really need is a multi-channel gateway for instance to connect it to The Things Networks. That would be $200 (and up), thank you very much. The IoT can only succeed on a large scale if costs are low enough, so Things Industries decided to design, and has now unveiled a low cost indoor multi-channel LoRaWAN gateway. Meet The Things Indoor Gateway. The Things Indoor Gateway specifications: SoC – Espressif System ESP8266 WiSoC Wireless Connectivity 802.11 b/g/n WiFi 4 via ESP8266 + PCB antenna LoRaWAN via Semtech 1308 chipset with Support for 868 MHz […]

Boardcon CM3588 Rockchip RK3588 System-on-Module designed for AI and IoT applications