{"error":{"root_cause":[{"type":"query_shard_exception","reason":"failed to create query: {\n \"regexp\" : {\n \"keyword\" : {\n \"value\" : \".*TPIC44L01,pdf (4-Channel Seria.*\",\n \"flags_value\" : 65535,\n \"max_determinized_states\" : 10000,\n \"boost\" : 1.0\n }\n }\n}","index_uuid":"SON-ziQURzKK3JljPlVlCQ","index":"recommend_keyword_search_v1"}],"type":"search_phase_execution_exception","reason":"all shards failed","phase":"query","grouped":true,"failed_shards":[{"shard":0,"index":"recommend_keyword_search_v1","node":"-Gn7X2aRSFmN2hMyaNEUCA","reason":{"type":"query_shard_exception","reason":"failed to create query: {\n \"regexp\" : {\n \"keyword\" : {\n \"value\" : \".*TPIC44L01,pdf (4-Channel Seria.*\",\n \"flags_value\" : 65535,\n \"max_determinized_states\" : 10000,\n \"boost\" : 1.0\n }\n }\n}","index_uuid":"SON-ziQURzKK3JljPlVlCQ","index":"recommend_keyword_search_v1","caused_by":{"type":"illegal_argument_exception","reason":"expected ')' at position 34"}}}]},"status":400}
MAX11040 4-channel, simultaneous-sampling 24-bit ADC is cascadable to 32 channels for unprecedented simplicity in system design
2009-06-27 23:42
MAX16814 Integrated, 4-Channel, High-Brightness LED Driver with High-Voltage DC-DC Controller
2009-08-22 09:08
本文首先阐述了nrf24l01概念,其次介绍了nrf24l01的性能参数,最后介绍了nrf24l01的工作原理。
2020-04-24 08:47
本文主要阐述了nrf24l01发射功率测试步骤及nrf24l01的应用领域。
2020-04-24 08:55
4通道红外遥控继电器电路,4 channel infrared remote relaysDescription Transmitter Schematic
2010-03-28 22:20
nRF24L01 with single ended matching network crystal, bias resistor, and decoupling capacitors.
2008-10-04 22:04
本文对nrf24l01无线模块传输距离进行了分析总结,nRF24L01是一款新型单片射频收发器件。介绍了三种不同模式的nrf24l01无线模块传输距离,无线模块通讯距离受影响的因素以及如何提升无线模块的通讯距离。
2017-12-15 13:47
stm32 24l01按键如何改发射频率?STM32开发nrf24L01的是开发代码的时候基本比较常见的做主机时初始化相关流程几个开发板的源代码,STM32开发nrf24L01按键主要任务是负责记录某一时刻按键状态。
2021-07-23 09:39
nRF24L01工作于全球开放的ISM( 工业、医学和科学) 2.4GHz 频段,其优点是使用者无需申请许可证,有利于方便使用和降低成本,同时可以避免低频段信号、各类电弧和家用电器的干扰,然而
2017-12-15 16:32
使用nRF24L01模块进行无线射频通信
2022-08-01 11:18