Maker hardware highlights
Makers shared a few neat, low‑cost hardware experiments: an Arduino radar scanner built from a servo and ultrasonic sensor, a Morse Micro Wi‑Fi HaLow shield offering long‑range 915 MHz connectivity for Arduino, and a Ugandan engineer's embedded PCB work for the CLIMCAM satellite payload. Each example underscores how affordable modules and careful PCB design are being used for sensing, long‑range IoT and space‑grade payloads. (x.com, x.com, x.com)
A basic maker toolkit is showing up in three very different places: on a desk as a sweeping Arduino scanner, on a shield for long-range wireless links, and inside a climate camera headed to the International Space Station. (projecthub.arduino.cc) (morsemicro.com) (unoosa.org) The Arduino build uses an Uno, an HC-SR04 ultrasonic sensor, and an SG90 180-degree servo to sweep a room and measure distance at each angle. The data is sent over serial and drawn as a live radar-style display in the Processing programming environment. (projecthub.arduino.cc) That setup works like sonar, not military radar: the sensor sends out sound pulses, waits for the echo, and converts the return time into distance. In the June 29, 2025 Arduino Project Hub example, the parts list is a standard beginner stack with a breadboard, jumper wires, and a USB cable. (projecthub.arduino.cc) The wireless piece solves a different problem: getting small devices online when ordinary 2.4 gigahertz Wi‑Fi runs out of range. Morse Micro’s MM6108-EKH05 evaluation kit uses Wi‑Fi HaLow, the IEEE 802.11ah standard, in sub-1 gigahertz bands and is built around the company’s MM6108 system-on-chip. (morsemicro.com 1) (morsemicro.com 2) Morse Micro says Wi‑Fi HaLow operates in the 850 to 950 megahertz range and is designed for lower power and longer reach than conventional Wi‑Fi for Internet of Things devices. The company says its technology can reach as far as 3 kilometers in some deployments, though real-world range depends on antennas, power limits, and obstacles. (morsemicro.com 1) (morsemicro.com 2) The same low-cost hardware logic shows up again in orbit, where the constraints are tighter and the tolerances are smaller. The ClimCam project from Egypt, Kenya, and Uganda is developing a compact camera for the Bartolomeo platform on the International Space Station to monitor climate impacts in Eastern Africa. (unoosa.org) (space.sti.go.ug) The United Nations Office for Outer Space Affairs says the payload targets about 10-meter ground sampling distance and about four imaging opportunities per day over Eastern Africa. Uganda’s Aeronautics and Space Science Bureau says the project also sets up data exchange among the three countries. (unoosa.org) (space.sti.go.ug) The team is not starting from scratch. The United Nations Office for Outer Space Affairs says the ClimCam engineering model was functioning in a testing setup at the Egyptian Space Agency payload lab as of January 1, 2024, after joint development work that began in April 2023. (unoosa.org) Recent regional reporting said ClimCam was scheduled for an April 2026 trip to the International Space Station under the United Nations Office for Outer Space Affairs and Airbus access-to-space program. Those reports described the payload as an artificial-intelligence-assisted climate camera built by the three-country team. (spaceinafrica.com) (ntv.co.ug) Taken together, the projects show the same pattern at three scales: a servo and sensor for local mapping, a sub-1 gigahertz radio for kilometer-class links, and a tightly designed camera board for Earth observation from orbit. The parts get more specialized, but the core method stays familiar: cheap modules where possible, custom board work where necessary. (projecthub.arduino.cc) (morsemicro.com) (unoosa.org)
