11/15/2023 0 Comments Anvil websiteYour Raspberry Pi Pico W should now connect to your Wi-Fi and the onboard LED should stop blinking. Anvil’s firmware uses MicroPython, and presents itself as a USB drive, similar to CircuitPython. Open File Explorer and navigate to the new USB drive. The Raspberry Pi Pico will reboot and will now run MicroPython.Ĥ. Drag and drop the Anvil UF2 file onto the RPI-RP2 drive. Release BOOTSEL once the drive RPI-RP2 appears on your computer.ģ. Push and hold the BOOTSEL button on the Pico, then connect to your computer using a micro USB cable. Download the custom Raspberry Pi Pico W firmware from Anvil.Ģ. Before we can write any code for our project we first need to flash the custom firmware to the Pico W, and connect to our Wi-Fi.ġ. The firmware is based on MicroPython, with the Pico W appearing as a USB drive with two files (boot.py and main.py). Setting up the Raspberry Pi Pico WĪnvil uses a custom firmware image for the Raspberry Pi Pico W, an image which simplifies connecting the Pico W to Anvil’s services. SCL: (Orange Wire) Connect to I2C0 SCL on the Pico W.Ĭheck your wiring before moving onwards. SDA: (Yellow Wire) Connect to I2C0 SDA on the Pico W. VCC: (Red Wire) Connect to VBUS on the Pico W. Higher water levels in Anvil Lake are expected to result in the lake becoming more strongly stratified and have slightly improved water quality (lower nutrient and algal concentrations and increased water clarity) (Robertson et al., 2018).GND: (Black Wire) Connect to any GND on the Pico W. If precipitation increases in the future, as results from many General Circulation Models (GCMs) suggest (Robertson et al., 2016), and if that outweighs the effects of increased evaporation caused by increased air temperatures, water levels in Anvil Lake may be expected to fluctuate at a higher level. During periods with higher water levels, the water quality in the lake was shown to improve slightly as a result of the nutrients being diluted in a larger volume of water. During periods of lower precipitation and lower water levels, Anvil Lake was a polymictic lake, whereas during periods of higher precipitation and higher water levels the lake was a dimictic lake with stratification lasting throughout summer. The changes in water levels were shown to affect the extent of stratification and water quality in the lake (Robertson et al., 2018). Atmospheric fluxes (precipitation minus evaporation) primarily drove the lake-level fluctuations and trends, but sub-decadal fluctuations in net groundwater exchange (groundwater inflow minus lake seepage) either enhanced or reduced the lake level response to the atmospheric drivers. GLM, monthly lake/groundwater exchange estimated with a groundwater model (MODFLOW), daily precipitation from the North American Land Data Assimilation System (NLDAS), and stream inflow and outflow were set as zero because the lake has no inlets or outlet. Water levels in Anvil Lake were simulated (Figure 1) using a hydrodynamic model (General Lake Model, GLM), with daily lake evaporation estimated by To determine the causes of the changes in water level, a complete water budget was estimated for Anvil Lake from 1980 to 2014. To verify the consistency of the various datums used throughout this period, historical photographs with the water’s edge identified were obtained, tied to NAVD 1988 using a Real Time Kinematic satellite global positioning system, and compared with the measured water levels (See Figure 1). Like most long-term records, Anvil Lake’s water level record has been measured by several observers using various techniques. At its lowest level, the lake had a maximum depth of 8.2 m (mean depth of 4.7 m) and an area of 128 ha. Water levels then rebounded dramatically, reaching near “normal” water levels in 2020. Although experiencing large cycles in water levels, the long-term average levels were relatively stable until about 1987, when water level dropped dramatically by an additional 1 m (in 2016). Anvil Lake’s water level record shows a pronounced 10–15-yr cycle, with recurring highs and lows with a typical swing of over 1 m. Anvil Lake, a relatively shallow seepage lake in northern Wisconsin, USA, has experienced dramatic changes in water level since elevation records began in 1938 in response to changes in meteorological and climatic conditions (Figure 1.
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