#Atmel

@doccool.bsky.social

1 week ago

Mailbag #163: Elektronik von Seeed Studio China, LoRa GPS Tracker, Wio Terminal ATSAMD51, RTL8720DN YouTube video by Doc Cool

Neues Video:

#Mailbag #163: #Elektronik von #Seeed Studio #China, #LoRa #GPS #Tracker, #Wio #Terminal #ATSAMD51, #RTL8720DN

--> youtu.be/IeFm2j17cpQ

#SeeedStudio #Unboxing #Unbagging #Maker #DIY #Atmel #Gadgets #Warentest #Produkttest

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Raspberry-Pi

@raspberry-pi.activitypub.awakari.com.ap.brid.gy

1 week ago

Original post on cnx-software.com

WiFi and Bluetooth LE can now be used simultaneously on Arduino boards with NINA-W102 (ESP32) module Today I learned that WiFi and Bluetooth LE could NOT be used simultaneously on Arduino boards fe...

#arduino #Atmel #SAMD #BLE #bluetooth #development […]

[Original post on cnx-software.com]

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Raspberry-Pi

@raspberry-pi.activitypub.awakari.com.ap.brid.gy

1 week ago

WiFi and Bluetooth LE can now be used simultaneously on Arduino boards with NINA-W102 (ESP32) module Today I learned that WiFi and Bluetooth LE could NOT be used simultaneously on Arduino boards fe...

#Atmel #SAMD #Espressif #Hardware #Raspberry #Pi […]

[Original post on cnx-software.com]

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Raspberry-Pi

@raspberry-pi.activitypub.awakari.com.ap.brid.gy

1 week ago

WiFi and Bluetooth LE can now be used simultaneously on Arduino boards with NINA-W102 (ESP32) module Today I learned that WiFi and Bluetooth LE could NOT be used simultaneously on Arduino boards fe...

#Atmel #SAMD #Espressif #Hardware #Raspberry #Pi […]

[Original post on cnx-software.com]

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Raspberry-Pi

@raspberry-pi.activitypub.awakari.com.ap.brid.gy

3 months ago

Original post on cnx-software.com

Arduino-programmable environmental and air quality sensor kit features ENS160 and BME280 sensors Designed by Nova Radio Labs in the US, the Novaduino Environmental Sensor Kit is an Arduino-program...

#3D #printing #arduino #Atmel #SAMD #development #board […]

[Original post on cnx-software.com]

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Raspberry-Pi

@raspberry-pi.activitypub.awakari.com.ap.brid.gy

3 months ago

Arduino-programmable environmental and air quality sensor kit features ENS160 and BME280 sensors Designed by Nova Radio Labs in the US, the Novaduino Environmental Sensor Kit is an Arduino-program...

#Atmel #SAMD #Hardware #Raspberry #Pi #3d #printing […]

[Original post on cnx-software.com]

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mx alex tax1a - 2020 (6)

@atax1a.infosec.exchange.ap.brid.gy

7 months ago

hey #atmel #lazyweb is the main difference between the SAM L21 and D21 largely in power consumption and peripheral count? it seems like this is the case

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Klafyvel

@klafyvel.social.sciences.re.ap.brid.gy

8 months ago

Hey! You! #microcontroller and #electronics nerds of the fediverse! Can anyone help me find the schema files for Microship's Atmel Tools Device Files?

#microship #atmel #AVR #xml #ATDF

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Forem

@forem.com.web.brid.gy

9 months ago

IoT Architectures Under Pressure: Smart Thermostat, Hardware (Part 7) In previous posts, we developed the firmware for a cost-effective smart thermostat, embracing a firmware-less approach and then refining the original design. Now, we turn our attention to the hardware, demonstrating that a smart device doesn’t have to be more expensive (whether in design, development, production, or purchase) than compared to a traditional one. **Disclaimer** : The code and electronic circuit designs provided in this post are intended for **illustrative purposes only**. They should not be considered best practices nor assumed to comply with **industry safety standards** or regulations. Before implementing any design, always refer to **official documentation, safety guidelines, and certified standards** applicable to your region or industry. The author assumes **no responsibility for damages, malfunctions, or risks** arising from the use of this information. ## Hardware In this example we omit the power supply and we assume I2C communication with the hub (you might need a bus buffer like NXP P2B96 for long distances). The entire device is built around an Atmel ATtiny85 microcontroller, a Texas Instruments LM35 temperature sensor and a Sanyou SRD relay. Other variations are surely possible with minimal changes. With this design, the estimated cost for all components is around 8 USD (€7) but it's way less than that if you buy in bulk. ## Software Let's see the firmware, again we are going to keep it simple (refer to Atmel's Application Notes for a full I2C slave implementation). #include <avr/io.h> #include <avr/interrupt.h> #include <util/delay.h> #include <stdint.h> #define SLAVE_ADDRESS 0x50 #define NUMBER_OF_SAMPLES 6 #define FURNACE_ON_COMMAND '1' #define FURNACE_OFF_COMMAND '0' #define READ_TEMPERATURE_COMMAND 'r' #define STATE_WAIT_ADDRESS 0 #define STATE_RECEIVE_COMMAND 1 #define STATE_TRANSMIT_DATA 2 #define MAX(a, b) ((a) > (b) ? (a) : (b)) #define MIN(a, b) ((a) < (b) ? (a) : (b)) volatile uint8_t g_command = 0; volatile uint8_t g_state = STATE_WAIT_ADDRESS; uint16_t read_single_temperature(void) { ADMUX = (1 << REFS0) | (1 << MUX1); ADCSRA |= (1 << ADSC); while (ADCSRA & (1 << ADSC)) ; return 5 * ADC * 100 / 1024; } uint8_t read_temperature(void) { uint16_t sum = 0, min = UINT16_MAX, max = UINT16_MIN; for (uint16_t i=0; i < NUMBER_OF_SAMPLES; ++i) { uint16_t sample = read_single_temperature(); sum += sample; min = MIN(min, sample); max = MAX(max, sample); } // We average the samples we read ignoring the maximum and the minimum, // this should give us a better (and stable) reading. // The 2 LSB can be ignored (noise and approximations) and // we are expected to provide only 8 bit values in °C. uint16_t temperature = (sum - min - max) / (NUMBER_OF_SAMPLES - 2); return (uint8_t)(temperature >> 2); } void init_adc(void) { ADCSRA = (1 << ADEN) | (1 << ADPS2) | (1 << ADPS1) | (1 << ADPS0); } void init_i2c(void) { // We use external pull-up resistors, no need for internal ones // PORTB |= (1 << PB0) | (1 << PB2); DDRB &= ~((1 << PB0) | (1 << PB2)); USIDR = 0; USISR = (1 << USIOIF); USICR = (1 << USISIE) | (1 << USIWM1) | (1 << USIWM0) | (1 << USICS1); } ISR(setup_handler) { USISR = (1 << USISIF) | (1 << USIOIF); g_state = STATE_WAIT_ADDRESS; } ISR(usi_handler) { if (g_state == STATE_WAIT_ADDRESS) { uint8_t received = USIDR; uint8_t address = received >> 1; uint8_t rw = received & 0x01; if (address == SLAVE_ADDRESS) { if (rw == 0) { g_state = STATE_RECEIVE_COMMAND; } else { if (g_command == READ_TEMPERATURE_COMMAND) USIDR = read_temperature(); else USIDR = 0; g_state = STATE_TRANSMIT_DATA; } } USISR = (1 << USIOIF); } else if (g_state == STATE_RECEIVE_COMMAND) { g_command = USIDR; if (g_command == FURNACE_ON_COMMAND) PORTB |= (1 << PB1); else if (g_command == FURNACE_OFF_COMMAND) PORTB &= ~(1 << PB1); g_state = STATE_WAIT_ADDRESS; USISR = (1 << USIOIF); } else if (g_state == STATE_TRANSMIT_DATA) { g_state = STATE_WAIT_ADDRESS; USISR = (1 << USIOIF); } } int main(void) { DDRB |= (1 << PB1); init_adc(); init_i2c(); sei(); while (1) { // Might sleep a few minutes instead of delaying _delay_ms(100); } return 0; } ## Conclusions From this minimal implementation, we can draw a few conclusions: * Our hardware is **incredibly simple** (and thus **cost-effective**), even simpler than a traditional non-smart thermostat. Not only is it simple, but it is also **highly similar** to a traditional implementation, meaning **transition costs are negligible**. * Our firmware is **as streamlined as possible** (both in our device and in the hub) eliminating the complexities often associated with connected devices (security, UI, compatibility, support, cloud infrastructure, etc.). Developing a smart device can be **both a sustainable and profitable option** , benefiting **vendors and customers alike**.

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Petr Klosko

@klosko.net

1 year ago

#dnesBastlim, resp. čeká mne oprava, ~27y.o. páječky postavené podle AMARA 11/1997 👇
První porucha po těch letech - netopí 🤷
BTW, to trafo jsem navíjel na praxi #DIY #nostalgia #bastlirna #ATMEL #89C2051 @microchip-makes.bsky.social
archive.org/stream/amate...

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Xavier F.

@fxmaccobra.bsky.social

1 year ago

Du domaine temporel au domaine spectral dans 2,5 kB de mémoire : transformée de Fourier rapide sur Atmega32U4 et quelques subtilités du C | Connect - Editions Diamond Nous avons exploré diverses implémentations libres de transformées de Fourier discrètes rapides (FFT), mais leur occupation en mémoire reste de la dizaine de kilooctets. Que peut-on faire avec 2,5 kB ...

Editions Diamond:
Notre article offert de la semaine "Du domaine temporel au domaine spectral dans 2,5 kB de mémoire : transformée de Fourier rapide sur Atmega32U4 et quelques subtilités du C" vous attend sur zurl.co/cH2IU #electronique #atmel #AVR #FFT

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Hopelessvirgin

@hiopelessvirgin.bsky.social

1 year ago

I finally designed my own 32bit hex display with 7 segments LED modules and PLDs.

I'm not happy with some of the design decisions but routing 32 bits is already hard enough, adding anything else would have made the board much bigger.

#electronics #LED #7segment #32bit #PLD #ATMEL #ATF16V8B

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FFVIMan

@ffviman.bsky.social

2 years ago

3 programmateurs avec leur adaptateur. Des petits composants sont posé sur la table

Moniteur PC a la verticale avec le logiciel de programmation

Programmation ! 😀
(Ça injecte du code quoi !)
#pic #micrichip #atmel #pic

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GiamMa-based researchers SDR R&D IoT

@giammaiot.bsky.social

4 years ago

GiamMa-based researchers SDR R&D IoT: BabySDR It's a software defined radio or SDR for short, based on #AT86RF215 & #RFFC5072 wideband mixe by Kruparth Patel #SoftwareDefinedRadio #Atmel #FPGA #Transceiver #Rx #Tx #Ham #Radio #HamRadio #SDR #workinprogress

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GiamMa-based researchers SDR R&D IoT

@giammaiot.bsky.social

4 years ago

BreadBoard FPGA RF IC is an AT86RF215 2.4GHz & sub-GHz radios, 13-bit IQ samples @ 4Msps #greatscottgadgets #Amalthea #AT86RF215 #Atmel #MIGOU #TinySDR #SoftwareDefinedRadio #FPGA #Transceiver #Rx #Tx #SBCSiPSoCCoM #OpenMote #TXInstruments #MicrochipMakes #SmartFusion2 #IoTSDR

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GiamMa-based researchers SDR R&D IoT

@giammaiot.bsky.social

4 years ago

GiamMa-based researchers SDR R&D IoT: AT86RF215 transceiver to be controlled over Ethernet and send/receive IQ data from GNU Radio #SoftwareDefinedRadio #Atmel #GnuRadio #Transceiver #IoT #HamRadio #Makers