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ESP32 ADC programming tutorial with ESP-IDF

embeddedguy

Table of Contents Introduction to ADC Build and Flash Reference Code Introduction to ADC Sometimes it is quite easy to think that programming an ADC(Analog to Digital converter) is so simple. Specially if someone is used to to the Arduino platfor...
- 18 Jun 2024
division operation with float variable mplabx v6.00 xc16 (v2.00)

hazard

hi every one. I have some problem trying make some division with float variable. some one can help me please. main.c while(0) { menu_state = PARAM_MENU; param_menu = PARAM_MENU_FREQ; pwmq_freq_ui16 = encoder_knob_read(); set_PWM1_F...
- 18 May 2024
Renesas RX65 Envision Kit - start an LCD project with the emWin AppWizard and GCC

Jan Cumps

I was evaluating the Renesas RX65N MCU EV Kit a few years ago. While doing my road tests, the LCD screen died*. Andrew J sent me his screen (and his EV kit!). I can now investigate the latest RX65N - Segger emW...
- 2 May 2024
Renesas RX65 Envision Kit - Display Configuration for EastRising 5" TFT LCD display

Jan Cumps

The Envision kit comes with a Newhaven NHD-4.3-480272EF-ATXL#-CTP. I'm trying it out with an EastRising? SH500J15Z. It's pin-compatible with the original display, just a little taller. 5" instead of 4.3". Programs I wrote...
- 1 Apr 2024
Renesas Solution Starter Kit for RX23E-A - break out the SPI signals

Jan Cumps

I'm about to design some analogue measurement devices based on the Renesas RX23E-A controller. With SPI as communication channel between that IC and a more generic communication/processing board. The full design of the future project is still se...
- 24 Mar 2024
Low-Cost Microcontrollers: Using a CH32V003 RISC-V Device!

shabaz

Table of Contents Introduction Microcontroller Overview What’s Needed to Get Started? Development Environment Editing the Default Code Building (Compiling) the Code Running the Code Build Your Own Board Coding General Purpose Input/Output (G...
- 12 Feb 2024
Exposing Secret Hidden DACs on AVR Dx MCUs

misaz

Blog show getting additional Digital-to-Analog (DAC) converters on AVR Dx/Ex microcontrollers with using just two external low-accurate passives.
- 28 Dec 2023
CH32V003 RISC-V MCU and Embeetle IDE

ralphjy

I was watching the Electromaker show on their YouTube channel last week and Ian mentioned the Electromaker Educator Blog "Embeetle IDE: The Best IDE for Coding RISC-V Microcontrollers?" where Robin Mitchell describes using th...
- 21 Nov 2023
sense rotation wheel with hall sensor (switch sensor)

hazard

hello everyoneI'm tryin to know a sense rotation of a wheel.it is possible detect the sense rotation of a wheel with one magnet and and two sensor hall (switch type)?if some one can help I will aprecciate the kindness.BR
- 20 Oct 2023
Improving User Experience with QR Codes for Microcontrollers!

shabaz

Table of Contents Introduction First Steps Strategy Generating QR Codes on a PC Converting QR Code Data into LCD Output Summary Introduction It is nice to improve the usability of electronic products. There are lots of valuable technologies for ...
- 7 Oct 2023
Inspiring Raspberry Pi RP2040 Projects for Midyear 2023

Catwell

(Image credit: Raspberry Pi) I’ve been a bit obsessed with the RP2040 chip. I want to build around the chip. So, I put together a list of projects I like using the RP2040 as inspiration to us all. Instead of working with a raw chip, you c...
- 22 Aug 2023
Researchers in China Say They Can Miniaturize Carbon Nanotube-Based FETs Even Further

Catwell

a) Carbon nanotube transistors based on nanotube arrays with a 175nm contacted gate pitch. B) Carbon nanotubes; output characteristics. c) A 6T-SRAM cell false-color image. d) Benchmark results for the 6T-SRAM cell with silicon technology nodes. (I...
- 14 Aug 2023
Myths and Rumors Regarding the RP2040 and IoT Applications

Catwell

(Image credit: Raspberry Pi) No matter the SBC (Single Board Computer), microcontroller, or chip, there will always be myths that inevitably become associated with the technology. This is prominent before the technology is released, as the informati...
- 1 Aug 2023
Renesas Solution Starter Kit for RX23E-A: little voltmeter project

Jan Cumps

I'm closing the Road test: Renesas Solution Starter Kit for RX23E-A with a little project: a 0 - 3.3V 24 bit volt meter with 512x oversampling. It's the most simple example possible, with just 1 channel on one ADC configured, and ...
- 24 Jul 2023
Renesas RX: C++ tryout with GCC

Jan Cumps

When you create a new Renesas project for an RX device, you can choose C++. Let's try it out with an object oriented blinky. For simplicity, I'm creating one class: an output pin class called io::O. It can drive a pin high and low. Yo...
- 20 Jul 2023
Renesas Solution Starter Kit for RX23E-A: RDT PT100 temperature measurement

Jan Cumps

The "Temperature Measurement Examples Using Resistance Temperature Detectors" appnote for Road test: Renesas Solution Starter Kit for RX23E-A comes with example firmware. I'm testing that here. I've reviewed 2 other...
- 19 Jul 2023
Renesas Solution Starter Kit for RX23E-A: build and run the Load Cell application

Jan Cumps

The load cell appnote for Road test: Renesas Solution Starter Kit for RX23E-A comes with example firmware. In combination with the stater kit PC Tool, you get a balance display. The firmware source is available as an e² studi...
- 15 Jul 2023
Renesas Solution Starter Kit for RX23E-A: enable GPIO FIT module (HAL)

Jan Cumps

In e² studio, when you install the support for Road test: Renesas Solution Starter Kit for RX23E-A, the FIT directory does not include the smart configurator module r_gpio_rx. For non-Renesas developers: this is the HAL API for GPIO. easter...
- 13 Jul 2023
Renesas Solution Starter Kit for RX23E-A: GCC Toolchain blinky

Jan Cumps

The e² studio simple blinky project for Road test: Renesas Solution Starter Kit for RX23E-A. Can be used as a start project for new designs. gcc toolchain debug (E2 Lite) and release config Starter Kit board selected tested precompile...
- 13 Jul 2023
Renesas Solution Starter Kit for RX23E-A: Thermocouple sampling

Jan Cumps

I Road Tested the Renesas' RX23E-A starter kit (Road test: Renesas Solution Starter Kit for RX23E-A). Now that the review is done, I can spend some time to go into the details. In this post, I'm checking how the firmware makes a preci...
- 7 Jul 2023
Renesas Solution Starter Kit for RX23E-A: Thermocouple Cold Junction Compensation

Jan Cumps

I reviewed the thermocouple cold junction compensation analogue circuit of the Renesas' starter kit (Road test: Renesas Solution Starter Kit for RX23E-A) in an earlier post. Here I'm checking how the firmware uses that compensation circuit ...
- 6 Jul 2023
Renesas Solution Starter Kit for RX23E-A: ADC Measurement

Jan Cumps

Time for a first raw ADC test for Road test: Renesas Solution Starter Kit for RX23E-A. This is a first step to check (and learn) the analogue capacities of the RX23E-A. On the starter kit, I'm using the default firmware and default setup. A...
- 28 Jun 2023
Renesas Solution Starter Kit for RX23E-A: port Thermocouple application to GCC Toolchain

Jan Cumps

The e² studio project for Road test: Renesas Solution Starter Kit for RX23E-A is built for Renesas CCRX toolchain. I'm porting it to GCC. I've done this before for several RX65 projects (see Renesas RX65 Envision Kit - part 3...
- 25 Jun 2023
Renesas Solution Starter Kit for RX23E-A: compare RX23E-A measurements to DMM6500

Jan Cumps

I compared the results of Renesas' Thermocouple appnote's firmware for the Road test: Renesas Solution Starter Kit for RX23E-A. This is a first step to check (and learn) the analogue capacities of the RX23E-A. All drawings and schemat...
- 25 Jun 2023
Renesas Solution Starter Kit for RX23E-A: build and run the Thermocouple application

Jan Cumps

The thermocouple appnote for Road test: Renesas Solution Starter Kit for RX23E-A comes with example firmware. In combination with the stater kit PC Tool, you get a temperature display. The firmware source is available as an e...
- 23 Jun 2023