Published: April 6, 2017, 5:05 a.m.
Podcast Notes
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- What to expect
- Networking
- Fireside chats with Q&A
- Individual project sharing and discussion
- Door prizes
- Refreshments
- Parker has been working on the next step of the RPI3 LVDS project.
- Pinout the SODIMM connector for the RPI3 Compute Module. See Figure 1.
- Part number 1473149-4 by TE Connectivity
- LVDS DS90C365A IC is net listed up
- Trying to use the PWM function to control the backlight of the LCD.
- GPIO40 is PWM0 on the RPI3
- Still to be done
- Power 1.8V, 3.3V, 12V
- SD card
- HDMI
- USB and a USB Hub
- Break out all the pins
- Test points for clk signals and data streams
- Stephen has a challenge for the listeners.
- Goal: A design for a ring of LEDs that surround a control knob on a synthesizer and light up according to the position of the knob
- Requirements
- The circuit must connect to a potentiometer (this can be a dual gang version) example: rv16a01f
- The ring of LEDs must be centered on a 12mm radius around the potentiometer.
- Whole circuit must not be larger 1.2” W x 1.2”H x 1.2”D
- PCB can solder directly to pins on potentiometer
- Multiple PCBs is acceptable if needed
- Color of the leds does not matter although green or red is preferable
- Number of leds is 16 minimum and 32 maximum
- LEDs are arranged on a 300 degree arc (potentiometer has 300 degrees of rotation) starting at 240 degrees and ending at -60 degrees
- The circuit will receive external 5V power so it must have through hole pads for power and gnd
- CHEAP CHEAP CHEAP! Do this for as cheap as possible
- Rapid Fire Opinion
- Revealing Capcom’s Custom Silicon Security - Hackaday
- Capcom developed their arcade boards to die with their secrets through a “suicide” system. System name CSP-2
- Basically all the game code was encrypted and the key was stored in volatile ram kept alive by a battery.
- Reminds Parker of the reflow oven that MacroFab currently use.
- NXP chip checks your booze - Electronics Weekly
- The Tag uses NXP’s NTAG 213 Tag Tamper technology which checks the origin of the bottle, detects if the bottle has been opened, and creates a