TF Card Soundplayer over Serial Communication. The Node use Soft-UART
https://wiki.dfrobot.com/DFPlayer_Mini_SKU_DFR0299
2020-06-17 ⋯ 5 versions ⋯ 2020-12-16
Libraries
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chris-cross/wtv020-dfplayer@1.0.4
chris-cross/mh-z19b@1.0.1
Infrared CO2 Sonsor Module (NDIR)
Range: 0~2000/5000/10000ppm (optional)
Accuracy: +/- (50ppm +5% reading value)
Detection Gas: CO2
Working voltage 4.5 - 5.5V DC
Only Boards with multiple UART connections (e.g. Arduino MEGA) runn
2020-12-12 ⋯ 2 versions ⋯ 2020-12-12
chris-cross/random-wemos-d1@1.0.0
Random Node only for WEMOS-D1_Mini Board.
Generates pseudo-random numbers in range [0; 1). Uses a linear congruential generator algorithm.
2020-07-01