Introduction

A thermos cup cooling and heating controller based on the Renesas R7FA2E1A72DFL#AA 32-bit series microcontroller.

Introduction to chip features

Refer to the official case [Training Camp] Light Bar Controller-EDA Open Source Hardware Platform (oshwhub.com)

R7FA2E1A72DFL#AA is the entry-level single-chip microcontroller of the RA series, based on the 48 MHz Arm® Cortex®-M23 core, with up to 128 kB of code flash memory and 16 kB of SRAM. This product uses an optimized process and Renesas Electronics' low-power process technology. The product supports a wide operating voltage range of 1.6V to 5.5V and a variety of packages, such as LQFP, QFN, LGA, BGA and WLCSP. The RA2E1 is pin- and peripheral-compatible with the RA2L1 product group, making it ideal for battery-powered and space-constrained applications, as well as other systems requiring high performance and low power consumption.

• 48MHz Arm® Cortex®-M23;
• Wide operating voltage range of 1.6V - 5.5V;
• Enhanced capacitive touch sensing unit (CTSU);
• Independent SPI interface/I2C multi-master interface;
• 12-bit ADC, LPACMP, temperature sensor;
• 32-bit general-purpose PWM timer, 16-bit general-purpose PWM timer, low-power asynchronous general-purpose timer;

Introduction to the functions of the work

• It can preheat PCB to facilitate welding. It can cool down quickly after welding without waiting.
• Of course, it is possible to heat and cool the cup, but the efficiency is low. . . Why
• 

Control instructions

• Click function: turn on heating/turn on cooling/off
• Long press function: pwm temperature adjustment (not perfect, currently just flashing)

Hardware description

Software description

1.PWM control output

1.1 Configure PWM pins and generate code

1.2 Open hal_entry.c and find the place where you can add your own code and add the corresponding application function.

PWM breathing light program