Search found 7 matches

by JDRBoston
Mon Aug 26, 2019 12:28 am
Forum: ESP32 boards
Topic: How to write single bit to slave using i2c
Replies: 5
Views: 622

Re: How to write single bit to slave using i2c

Thank you, jimmy, rpm, and OutoftheBOTS._ I greatly appreciate your responses! jimmo, you are right - that is the data sheet that I was using. In my application, I am using a Honeywell SSCDANN150PG2A3, which is a vented gauge sensor in a 8-pin DIN package that measures 0 - 150PSI applied to a port a...
by JDRBoston
Sun Aug 25, 2019 2:53 pm
Forum: ESP32 boards
Topic: How to write single bit to slave using i2c
Replies: 5
Views: 622

How to write single bit to slave using i2c

I am trying to read pressure and temperature data from a Honeywell SSC Series i2c pressure sensor. I would greatly appreciate your help in figuring out how to send a single bit to the device on the i2c bus so that I can get it to respond by sending data frames back. I am using an ESP32 running micro...
by JDRBoston
Wed May 01, 2019 4:20 pm
Forum: ESP32 boards
Topic: ESP32 - ADC - Invalid Pin
Replies: 6
Views: 4250

Re: ESP32 - ADC - Invalid Pin

Thank you, JumpZero. I was hoping for a software solution so that I could swap the LDR-soldered feather proto board between the Huzzah ESP8266 and ESP32. Rather than rewiring the proto board so that the ESP32 can access the LDR voltages via ADC1, I might make one that has a VEML7700 lux sensor. That...
by JDRBoston
Tue Apr 30, 2019 10:44 pm
Forum: ESP32 boards
Topic: ESP32 - ADC - Invalid Pin
Replies: 6
Views: 4250

Re: ESP32 - ADC - Invalid Pin

Is there a way to create A0 = GPIO26 (ADC2_CHO) as an analog pin for the ESP32 using the machine module? I am trying to use this pin for analog input on the ESP32 Huzzah because the physical location matches the ADC pin of the ESP8266 Huzzah and I’ve already wired up a LDR on a featherwing proto boa...
by JDRBoston
Mon Mar 19, 2018 10:50 am
Forum: ESP8266 boards
Topic: microSD card - clarification
Replies: 9
Views: 5197

Re: microSD card - clarification

This worked GREAT Dave - thank you, very much! Best wishes, Jay
by JDRBoston
Sun Mar 18, 2018 8:28 pm
Forum: ESP8266 boards
Topic: microSD card - clarification
Replies: 9
Views: 5197

Re: microSD card - clarification

Hi Phil, I am glad that it helped! Thank you for the example on how to write a file into the sd directory and then read it. Do you know how one can get access to libraries and run micropython code that has been transferred to the sd card? In my case, I would like to run a program that will access li...
by JDRBoston
Mon Feb 19, 2018 10:03 pm
Forum: ESP8266 boards
Topic: microSD card - clarification
Replies: 9
Views: 5197

Re: microSD card - clarification

Hi Phil, I'm working on a similar project - I am trying to use the Huzzah ESP8266 to collect data from a BME280 breakout board and an LDR, get a time-stamp from a RTC, and write the information to a SD card. I'm not sure whether this helps, but I have been able to mount an SD card using the followin...