Macrofab Engineering Podcast

Community Dice Stephen Community Dice Matt Parker - Standup Maths  Thingiverse Shapeways  What’s the highest frequency signal a home gamer can generate? (square and sin waves?) Parker New Engineering Article 3 Steps to Planning Parts Selection for Your Next Electronic Hardware Product Raspberry Pi Compute Module Motherboard Continuation from the Compute Module board from last year Added the PCM5122 audio DAC Learning about USB HUB design TUSB2046B TPS2044 for overcurrent protection Only rated for 500mA USB spec says only 120uF cap per hub required but 100uF per port is recommended with low ESR USB DM/DP signals require around 27 ohm termination resistors Optional filter of 22pF recommended for EMI suppression This creates a “low pass” filter with a cut off of 267.9 MHz 12M bit/sec full Speed USB 12MHz, well under this cut off Rapid Fire Opinion (R.F.O.) Mouser now Authorized Distributor for Espressif They make the ESP8266 Wifi stuff FPGA Dev boards Arrows $30 FPGA Board