Experiments with 2.4″ TFT

Ultimamente tenho andado a testar um display TFT de 2.4" PBC ILI9341 com touch adquirido na ebay por menos de 8euros! Este display gráfico é uma excelente aposta tanto para pequenos projectos como para projectos mais avançados pois inclui a capacidade de leitura de imagens armazenadas em cartão SD. Tem uma resolução de 240x320 RGB. Ler mais: http://ruijc.webnode.com/products/experiencias-com-tft-2-4-experim ...

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VU2ESE’s radio experiments

(A better, higher resolution diagram can be downloaded here: from my G Drive) If you don't want to read this long long write-up, here is a summary: This spectrum analyzer costs less than $100 to make. It is just a superhet radio that has a log amp where the speaker should have been. You can hack it. It has an Arduino. Works as well as a commercial spectrum analyzer. In some ways, even better. Works only upt ...

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