From: Blog – Hackaday - Octosonar is 8X Better than Monosonar

The HC-SR04 sonar modules are available for a mere pittance and, with some coaxing, can do a pretty decent job of helping your robot measure the distance to the nearest wall. But when sellers on eBay are shipping these things in ten-packs, why would you stop at mounting just one or two on your ‘bot? Octosonar is a hardware and Arduino software library that’ll get you up and running with up to eight sonar sensors in short order.

Octosonar uses an I2C multiplexer to send the “start” trigger pulses, and an eight-way OR gate to return the “echo” signal back …read more

From: Digital Trends - Good news iPhone owners — third-party repairs no longer void your warranty

In an about face on its longstanding policy, Apple has sent a memo around to its retail employees noting that a customer who has their device screen repaired by a third party does not void his or her warranty.

The post Good news iPhone owners — third-party repairs no longer void your warranty appeared first on Digital Trends.