Waveshare RP2040-One, 4MB Flash MCU Board Based On Raspberry Pi RP2040

Description

Description Show Reviews Waveshare 22809 -Waveshare RP2040-One, 4MB Flash MCU Board Based On Raspberry Pi RP2040 – RP2040-One Board Specifications RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz 264KB of SRAM, and 4MB of on-board Flash memory Castellated module allows soldering direct to carrier boards USB 1.1 with device and host support Low-power sleep and dormant modes Drag-and-drop programming using mass storage over USB 29 multi-function GPIO pins (20 via edge pinout, others via solder points) 2 SPI, 2 I2C, 2 UART, 4 12-bit ADC, 16 controllable PWM channels Accurate clock and timer on-chip Temperature sensor Accelerated floating-point libraries on-chip 8 Programmable I/O (PIO) state machines for custom peripheral support Multi-Function GPIO Pins What’s On Board PCB USB-A port RT9013-33GB 500mA low dropout, low noise, ultra-fast LDO WS2812 RGB LED BOOT button press it when resetting to enter download mode W25Q32JVSSIQ 4MB NOR-Flash RESET button RP2040 dual-core processor, up to 133MHz operating frequency RP2040 pins 10x solder points, including 9x GPIO pins Outline Dimensions Includes RP2040-One x1 Weight: 0.003 kg Resources Wiki: www.waveshare.com/wiki/RP2040-One 1 Review Hide Reviews Show Reviews 3 RP2040-ONE led control Posted by Code for LED and Temperature display on Mar 23rd 2023 Mar 23rd 2023 # # # main.py # # RP2040-ONE led usage and Temperature Display # import time from machine import Pin, ADC import rp2 max_lum =100 r =0 g =0 b =0 rgb =0 tm = 100 stm = 5 flag = 1 temp_sensor = ADC(4) points_per_volt = 3.3 / 65535 # set up 24 bit shift register on pin 16 @rp2.asm_pio(sideset_init=rp2.PIO.OUT_LOW, out_shiftdir=rp2.PIO.SHIFT_LEFT, autopull=True, pull_thresh=24) def ws2812(): T1 = 2 T2 = 5 T3 = 3 wrap_target() label(“bitloop”) out(x, 1) .side(0) [T3 – 1] jmp(not_x, “do_zero”) .side(1) [T1 – 1] jmp(“bitloop”) .side(1) [T2 – 1] label(“do_zero”) nop() .side(0) [T2 – 1] wrap() # Create the StateMachine with the ws2812 program, # outputting to Pin(16) as 24 bit shift register. sm = rp2.StateMachine(0, ws2812, freq=8_000_000, sideset_base=Pin(16)) # Start the StateMachine, it will wait for data on its FIFO. sm.active(1) # Get internal temperature def read_temp_c(): reading = temp_sensor.read_u16() * points_per_volt temp_c = 27 – (reading – 0.706)/0.01721 return temp_c # Set color of Led and Display with 24 bit stream def colorset(): rgb =(r<<24) | (g<<16) | (b<<8) sm.put(rgb) # Color change def fade(): flag = 1 r=0 g=0 b=0 rgb = 0 while flag<3: for i in range(0,max_lum): r=i b=max_lum-i rgb =(r<<24) | (g<<16) | (b<<8) sm.put(rgb) time.sleep_ms(stm) time.sleep_ms(tm) for i in range(0,max_lum): g=i r=max_lum-i rgb =(r<<24) | (g<<16) | (b<<8) sm.put(rgb) time.sleep_ms(stm) time.sleep_ms(tm) for i in range(0,max_lum): b=i g=max_lum-i rgb =(r<<24) | (g<<16) | (b<<8) sm.put(rgb) time.sleep_ms(stm) time.sleep_ms(tm) flag = flag + 1 # fade in color and intensity # demonstrating led usage in one way fade() stm = 700 # # or... here is another way # # set up 24 bit led colors to send to ws2812 # # Led off r=0 g=0 b=0 LOFF =(r<<24) | (g<<16) | (b<<8) # White r=60 g=60 b=60 White =(r<<24) | (g<<16) | (b<<8) # Red r=80 g=0 b=0 Red =(r<<24) | (g<<16) | (b<<8) # Green r=0 g=80 b=0 Green =(r<<24) | (g<<16) | (b<<8) # Blue r=0 g=0 b=80 Blue =(r<<24) | (g<<16) | (b<<8) sm.put(LOFF) time.sleep_ms(stm) sm.put(Red) time.sleep_ms(stm) sm.put(White) time.sleep_ms(stm) sm.put(Blue) time.sleep_ms(stm) sm.put(Green) time.sleep_ms(stm) sm.put(LOFF) time.sleep_ms(stm) # Colors do not seem to blend # only white,red,blue,green,off # but here is a way to try a blend stm = 900 r=10 g=0 b=0 colorset() time.sleep_ms(stm) time.sleep_ms(stm) time.sleep_ms(stm) sm.put(LOFF) time.sleep_ms(stm) # Show internal temperature print("-------------------") temp_c = read_temp_c() print(temp_c, "deg Celcius") temp_f = ((9 * temp_c)/5) + 32 print(temp_f, "deg Farenheit") print("-------------------") # State machine used as shift register set to Off sm.active(0)