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THE SOTH JOURNAL

Internet of Things

Ideas, know-how, and a little inspiration for your connected home.

WORTH A CLOSER LOOK

Internet of Things

Tesla's Heat Pump Optimization lets Powerwall 3 and 3P in Europe boost an SG-Ready heat pump when solar is in surplus or power is cheap

Tesla Energy announced Heat Pump Optimization for Powerwall 3 and Powerwall 3P in Europe on 30 October 2026. The feature lets the battery system tell a heat pump to run harder when the roof produces more solar power than the house uses, or when grid electricity is cheap. In its post Tesla called the heat pump "one of the biggest electrical loads in
Oct 30, 2026
3
min read

Modbus at home: read an energy meter or inverter over RS-485 or TCP

A lot of energy hardware already has a local data interface that often goes unused: DIN-rail energy meters, solar inverters, heat pumps and ventilation units often speak Modbus. The protocol comes from industrial controllers and needs no cloud or account. Once it works, you can poll voltage, power and energy counters as often as the device allows.
Oct 30, 2026
11
min read

Renesas RL78/G21: a 16-bit MCU for appliance control boards that halves power draw against the RL78/G13 and starts at $0.56

Renesas announced the RL78/G21 on 28 October 2026, a new 16-bit microcontroller aimed at the control boards inside air conditioners, refrigerators, washing machines and microwave ovens. It is not a wireless chip. It is the part that runs the motor, compressor and sensor logic, sitting next to whatever Wi-Fi or Thread module makes the appliance "sma
Oct 30, 2026
3
min read

eufy SoloCam E50 goes on sale for $229.99: two 4K lenses, 12x hybrid zoom, mmWave radar and local microSD storage on solar power

Anker's eufy brand has put the SoloCam E50 on sale in the US. The outdoor camera was first shown in late September, and MacSources reported its official launch on 29 October 2026. eufy's store sells it as the "S340 Next-Gen" for $229.99, and positions it as the outer perimeter layer of the company's Edge 5.0 security system: a camera meant to watch
Oct 30, 2026
3
min read

DTE Energy and sonnen link nearly 100 home batteries in Michigan's first residential virtual power plant pilot

DTE Energy and battery maker sonnen announced on 29 October 2026 that Michigan's first residential battery virtual power plant (VPP) is starting. The two-year pilot, approved by the Michigan Public Service Commission, will connect nearly 100 homes in Ann Arbor through their sonnen batteries and let the utility coordinate them as one grid resource.
Oct 30, 2026
2
min read

Ona's €165 kit makes a split air conditioner heat the house when power is cheap and uses the walls as a heat battery

Dutch startup Ona has launched a €165 kit that turns an ordinary split air conditioner into a price-aware heater. The idea, described by IO+ on 29 October 2026, is simple: run the air conditioner in the afternoon when electricity is cheap, let the concrete walls, floors and ceilings soak up the heat, and coast through the expensive evening hours on
Oct 30, 2026
3
min read

BrainChip sells a $1,295 Raspberry Pi 5 kit with its AKD1500 neuromorphic chip for always-on AI that learns on the device

BrainChip launched the AKD1500 Raspberry Pi 5 Development Kit on 29 October 2026. It puts the company's Akida AKD1500 chip on an M.2 card attached to a Raspberry Pi 5, so developers can try event-based, always-on AI on a board they probably already know. The kit is on sale now in BrainChip's online shop for $1,295, excluding tax.
Oct 29, 2026
3
min read

Bitdefender and NETGEAR 2026 IoT report: TVs, smart plugs and NAS drives account for two-thirds of vulnerability observations in home networks

Bitdefender and NETGEAR published their 2026 IoT Security Landscape Report on 28 October 2026. It is based on telemetry from roughly 10.4 million home routers protected by the two companies, collected from January to September 2026: 5.4 billion security events and about 1.2 billion vulnerability observations.
Oct 29, 2026
3
min read