The TSL2561 is an inexpensive, yet sophisticated, light sensor. Unlike simpler sensors, like photoresistors and photodiodes, the TSL2561 incorporates both infrared and visible light sensors to better approximate the response of the human eye. Because the TSL2561 is an integrating sensor (it soaks up light for a predetermined amount of time), it is capable of measuring both very small and very large amounts of light.

TTGO LoRa32 433/868/915Mhz ESP32 LoRa OLED 0.96 Inch SD Card Bluetooth WIFI Wireless Module-V1.6.1 S E-990 ESP chip: ESP32 PICO-D4 Flash: 4MB Protocol: 802.11 b/g/n (802.11n, speed up to 150 Mbps) Polymerization A-MPDU and A-MSDU, support 0.4 Frequency range: 2.4GHz ~ 2.5GHz Protocol: Complies with bluetooth v4.2 BR/EDR and BLE standard Radio frequency: With -97dBm sensitivity NZIF receiver, class 1, class 2 and class 3 AFH transmitter Audio Frequency: CVSD and SBC Audio Frequency Operating frequency: 868M/915MHz Transmission power: +20dBm Reception sensitivity: 139dBm @ LoRa and 62.5Khz and SF = 12 and 146bps 136dBm @ LoRa and 125Khz and SF = 12 and 293bps 118dBm @ LoRa and 125Khz and SF = 6 and 9380bps 123dBm@FSK&5Khz&1.2Kbps Frequency error: +/- 15KHz FIFO space: 64 bytes Data speed: 1.2K~300Kbps@FSK