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ICs enhance automotive proximity detection
Two Hall-effect switch families, the unipolar AH332xQ and omnipolar AH352xQ from Diodes, offer a range of operating sensitivity options. The automotive-compliant ICs are suitable for a wide range of...
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Ultra-wideband tech gets a boost in capabilities
The new NXP Trimension SR250 offers advancements in ultra-wideband (UWB) technology by being the first available single-chip solution that incorporates three main functions: Secure UWB ranging UWB...
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Switch mode hotwire thermostat
In recent EDN design ideas, we’ve seen thermostat designs that meld the functions of sensor and heater into a single device: FET, BJT, or even a simple length of fine gauge copper wire. A virtue...
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The power of practical positive feedback to perfect PRTDs
Frequent contributor Nick Cornford recently published a delightfully clever design idea using a platinum RTD calibrated to output a 1 mV/oC signal that’s perfect for direct readout via a standard DMM…...
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In-vehicle passenger detection: Wi-Fi sensing a ‘just right’ solution
Every year during extreme weather, infants, toddlers, and disabled adults are sickened or die overlooked in vehicles. While the numbers are not huge, each case is a tragedy for a family and community....
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ICs optimize IO-Link communications
Renesas has introduced the CCE4511 four-channel IO-Link master IC and the ZSSC3286, an IO-Link-ready sensor signal conditioner IC. Widely used in industrial automation, the IO-Link digital...
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Capture 16-bit readings of 8 thermistors in less than 1 second for $2
Figure 1 is a cheap and cheerful voltage inverter I offered awhile back in “A simple, accurate, and efficient charge pump voltage inverter for $1”. Figure 1 The generic and versatile xx4053 provides...
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“Half & Half” piezo drive algorithm tames overshoot and ringing
Piezoelectric actuators (benders, stacks, chips, etc.) are excellent fast and precise means for generation and control of micro, nano, and even atomic scale movement on millisecond and faster...
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Sensor powers AI detection in slim devices
The OV0TA1B CMOS image sensor from Omnivision fits 3-mm-high modules, ultrathin-bezel notebooks, webcams, and IoT devices. This low-power sensor is well-suited for AI-based human presence detection,...
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Online tool programs smart sensors for AIoT
ST’s web-based tool, AIoT Craft, simplifies the development and provisioning of node-to-cloud AIoT projects that use the machine-learning core (MLC) of ST’s smart MEMS sensors. Intended for both...
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