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When you do some ESP32projects you must hate to add a power bank to provide the power. This tiny board could solve such problems. A LG 3000mAH 18650 battery could make ESP32run 17 hours or more.18650 charging system integrated.indicate LED inside(Green means full& Red means charging)Charging and working could be at the same time.1 Switch could control the power.1 extra LED could be programmed(Connected with GPIO16[D0])0.5A charging current1A outputOver charge protectionOver discharge protectionFull ESP32 pins break out Click the link for more details：http://espressif.com/en/products/hardware/esp32-devkitc/overview Dimension sketch map shipping list : ESP32 0.96 inch OLED + 18650
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Product descriptionThis is a heart rate sensor based on Labs Si1143 Silicon chip sensor. The board is equipped with two infrared LED and a red LED, visible red light induction. These two frequencies are necessary for sensing and calculating the oxygen saturation in blood.
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![1pcs SX1278 LoRa Module 433M 10KM Ra-02 Ai-Thinker Wireless Spread Spectrum Transmission Socket for Smart Home DIY]( "1pcs SX1278 LoRa Module 433M 10KM Ra-02 Ai-Thinker Wireless Spread Spectrum Transmission Socket for Smart Home DIY")
Tip:1). Here is the 433m Spring Antenna for Rola 02, maybe you need to use it with Rola 02 module, please click here, thanks2). Ra-01 LoRa Module SX1278 433M 10KM Wireless Spread Spectrum Transmission DIY Kit for Smart Home Meter Reading DescriptionRa-02 is a wireless transmission module based on SEMTECH's SX1278 wireless transceiver. It adopts advanced LoRa spread spectrum technology, with a communication distance of 10,000 meters. It has strong ability of anti-jamming and has the function of air wake-up Consumption. Can be covering thousands of people in the district environment, particularly suitable for meter reading, smart home, burglar alarm equipment.The LoRa series module Ra-01 is designed and developed by AI-THINKER Technology. The SX1278 RF module is mainly used for long-range spread spectrum communication. It can resist Minimize current consumption. Thanks to SEMTECH's patented LoRa ™ modulation technology, the SX1278 has a high sensitivity of -148 dBm with a power output of +20 dBm, a long transmission distance and high reliability. At the same time, compared with the traditional modulation technology, LoRa ™ modulation technology has obvious advantages in anti-blocking and selection, which solves the problem that the traditional design scheme can not consider the distance, interference and power consumption at the same time.Features LoRa ™ Spread Spectrum modulation technologyConstant RF power output at + 20dBm-100mW voltage changeHigh sensitivity: down to -148dBmHalf-duplex SPI communicationProgrammable bit rates up to 300kbpsSupports FSK, GFSK, MSK, GMSK, LoRa ™ and OOK modulation modes127dB RSSI dynamic rangeAutomatic RF signal detection, CAD mode and very high speed AFCPacket engine with CRC up to 256 bytesSmall footprint dual-row stamp-hole patch packageShielded housingSpring Antenna Package ListLoRa Ra-02 Module SX1278 433M Wireless x 1
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Free Shipping 1lot=2pcs 1pcs 1602 16x2 HD44780 Character LCD + 1pcs IIC/I2C 1602 Serial Interface Adapter Module 1lot=2pcs1pcs 1602 16x2 HD44780 blue1pcs IIC/I2C
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describe：1.The main control chip using Le Xin ESP32, Tensilica LX6 dual core processor, clocked at 240MHz, computing capacity of up to 600DMIPS, 520 SRAM, 802.11 KB chip b/g/n HT40 Wi-Fi transceiver, baseband, and LWIP protocol stack, Bluetooth (Bluetooth dual-mode integrated traditional and BLE low-power Bluetooth).2. onboard 16 Mt bytes (128 Mt bit) , Flash, and Wi-Fi antennas,3.0.96 inch White OLED display,.4.lithium battery charging circuit and interface,5.CP2102 USB to serial chip, perfect support for Arduino development environment Note: This product does not include the battery. ESP32 QFN package is a highly integrated chip, because of high frequency, small volume and not easy to heat dissipation, soAppeared when use high fever is normal, we complete the circuit had done to the stability of the evaluation, pleaseRest assured use; If you have any worry, can increase the heat sink. shipping list：ESP32 OLED V2.0*1Line *1Small heat sink *1pin*2
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Notice: The new tracking number for China Post Ordinary Small Packet Plus can be traced only befor it arrive the airport of your country,please choose China Post Air Mail if you want a full tracking infTracking info of China Post Ordinary Small Packet Plus can be check here : www.17track.net/enShipping list: 1.ProtoBoard shield x1pcs If you want to form a complete set, please click link buy: https://www.aliexpress.com/item/Free-shipping-New-wemos-wifi-ESP8266-NODEMCU-esp-wroom-02/32782841008.html?If you want to buy a suit, please click on the link to buy:https://www.aliexpress.com/item/ProtoBoard-Schild-for-esp-wroom-02-doppelseitige-perf-board-Kompatibel-wemos-nodemcu-esp8266-wifi/32782849026.html?
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