9798250324496 - practical introduction to low power iot architectures with esp32-s3, sx1262 &nd micropython de bakowski, przemyslaw (5 resultados)
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Paperback. Condición: new. Paperback. n this book and the associated laboratories, we will explore the low-power characteristics of IoTsystems after first implementing and validating their essential functional features on the provided IoTSoCs and development boards. Through the laboratories, we will study several aspects of low-…power operation related to bothprocessing and communication. In particular, we will distinguish between the high-power state, inwhich all operational phases such as initialization, sensing, transmitting, and receiving take place, andthe low-power state, in which the device remains in sleep or idle mode. We will show that current consumption in the low-power stage is a key factor in reducing overallenergy usage during operational cycles. The lower the current in this stage and the longer its duration, the lower the total power consumption of the device. In our target system, the average current in thelow-power stage is expected to be around 15 uA. This book and its laboratories will involve three types of communication links and three categoriesof terminal devices. Directly connected devices will operate using Wi-Fi links, close devices willuse the Wi-Fi MAC layer through ESP-NOW, and remote devices will rely on long-range LoRa radiolinks. Close and remote devices will require intermediate router or gateway nodes to access theInternet using the IP protocol. The analysis and optimization of power (current) consumption will be carried out using the PowerProfiler Kit II (PPK2). This measurement device will allow us to observe and analyze the currentconsumption of the connected IoT development kits. Using the PPK2, we will optimize power consumption by introducing control parameters such asdelta, cycle time, and threshold value. These parameters will enable us to tune the powerconsumption to the required level. By comparing the energy efficiency of different radio links such as Wi-Fi, ESP-NOW, and LoRa, wewill demonstrate that, during the high-power state, the transmission phase accounts for the largestshare of energy consumption. This cost will be highest for Wi-Fi communication and for longtransmission phases with LoRa radio links. Finally, the laboratories will show that the lowest energy consumption can be achieved using ESP-NOW packet transmission and LoRa packet transmission with short packets and low spreadingfactors, such as SF7 or SF8. These labs may be considered a starting point for the development of more specific applications usingvarious types of sensors, actuators, and terminal devices. The DevKits, available in the form of Gerberfiles, can be produced and adapted for use in professional teaching classes as well as in industrialdevelopment laboratories. All development software presented in this book and in the associated laboratories is implementedusing MicroPython. The use of MicroPython allows rapid prototyping and clear program structurewhile maintaining direct access to the hardware features of the IoT SoCs. This approach makes thelaboratories accessible for educational purposes while remaining suitable for advanced experimentationand low-power optimization. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.
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Paperback. Condición: new. Paperback. n this book and the associated laboratories, we will explore the low-power characteristics of IoTsystems after first implementing and validating their essential functional features on the provided IoTSoCs and development boards. Through the laboratories, we will study several aspects of low-…power operation related to bothprocessing and communication. In particular, we will distinguish between the high-power state, inwhich all operational phases such as initialization, sensing, transmitting, and receiving take place, andthe low-power state, in which the device remains in sleep or idle mode. We will show that current consumption in the low-power stage is a key factor in reducing overallenergy usage during operational cycles. The lower the current in this stage and the longer its duration, the lower the total power consumption of the device. In our target system, the average current in thelow-power stage is expected to be around 15 uA. This book and its laboratories will involve three types of communication links and three categoriesof terminal devices. Directly connected devices will operate using Wi-Fi links, close devices willuse the Wi-Fi MAC layer through ESP-NOW, and remote devices will rely on long-range LoRa radiolinks. Close and remote devices will require intermediate router or gateway nodes to access theInternet using the IP protocol. The analysis and optimization of power (current) consumption will be carried out using the PowerProfiler Kit II (PPK2). This measurement device will allow us to observe and analyze the currentconsumption of the connected IoT development kits. Using the PPK2, we will optimize power consumption by introducing control parameters such asdelta, cycle time, and threshold value. These parameters will enable us to tune the powerconsumption to the required level. By comparing the energy efficiency of different radio links such as Wi-Fi, ESP-NOW, and LoRa, wewill demonstrate that, during the high-power state, the transmission phase accounts for the largestshare of energy consumption. This cost will be highest for Wi-Fi communication and for longtransmission phases with LoRa radio links. Finally, the laboratories will show that the lowest energy consumption can be achieved using ESP-NOW packet transmission and LoRa packet transmission with short packets and low spreadingfactors, such as SF7 or SF8. These labs may be considered a starting point for the development of more specific applications usingvarious types of sensors, actuators, and terminal devices. The DevKits, available in the form of Gerberfiles, can be produced and adapted for use in professional teaching classes as well as in industrialdevelopment laboratories. All development software presented in this book and in the associated laboratories is implementedusing MicroPython. The use of MicroPython allows rapid prototyping and clear program structurewhile maintaining direct access to the hardware features of the IoT SoCs. This approach makes thelaboratories accessible for educational purposes while remaining suitable for advanced experimentationand low-power optimization. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.
