Search found 5 matches

by burtrum
Thu Dec 05, 2019 4:02 pm
Forum: Hardware
Topic: esp-wroom-32 socket
Replies: 4
Views: 1823

Re: esp-wroom-32 socket

Hi I know these spring pins as "frogo" pins.
A search found lots of frog shaped broachs !
Good luck.
Burtrum
by burtrum
Mon Nov 25, 2019 5:08 pm
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 392
Views: 195202

Re: What would you like to see in The Next Chip?

For aiding in push button debounce... Schmitt trigger inputs.

Burtrum
by burtrum
Mon Sep 30, 2019 2:57 pm
Forum: Hardware
Topic: Official Kicad symbols.
Replies: 1
Views: 1278

Official Kicad symbols.

The latest 5.1 Kicad Schematic/PCB release has a lib for espessif. But only 8266.
So where are the latest official Kicad ESP32 models, including the modules?

Does Espressif use Kicad or something else?

Thanks, Burtrum
by burtrum
Fri Jul 26, 2019 10:14 pm
Forum: Hardware
Topic: I2C transmission errors. Rounded I2C clock edge from ESP module?
Replies: 6
Views: 2137

Re: I2C transmission errors. Rounded I2C clock edge from ESP module?

The I2C pins are Open Drain and OD circuits tend to have slow rise time unless you use minimal resistor values. Rise time is a factor of total distributed capacitance. Remember the resistor pulls the OD line high. The chip pulls it low. I find that 10K pull-ups are best used with V = 5V. I use 4.7 K...
by burtrum
Mon Apr 30, 2018 1:59 pm
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 392
Views: 195202

Re: What would you like to see in The Next Chip?

1. Mechanical Switch Debounce in HW.
2. Rotary Encoder Switch Decoder.

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