esp8266-test-boards
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esp8266-test-boards [2015/03/14 16:17] geezus [AI-Thinker 'Test Board'] |
esp8266-test-boards [2016/06/16 15:55] livetelevision [AI-Thinker 'Test Board'] |
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| + | ====== Boards ====== | ||
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| ==== Node MCU ==== | ==== Node MCU ==== | ||
| Node MCU who provides the LUA firmware also propose evaluation boards: | Node MCU who provides the LUA firmware also propose evaluation boards: | ||
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| ==== Olimex ESP8266-EVB EValuation Board ==== | ==== Olimex ESP8266-EVB EValuation Board ==== | ||
| ESP8266-EVB is Evaluation board for ESP8266 with relay, button, UEXT, all GPIOs available on 0.1" header | ESP8266-EVB is Evaluation board for ESP8266 with relay, button, UEXT, all GPIOs available on 0.1" header | ||
| - | [[https://www.olimex.com/Products/Modules/Ethernet/ESP8266-EVB/open-source-hardware]] | + | [[https://www.olimex.com/Products/IoT/ESP8266-EVB/]] |
| ==== AI-Thinker 'Test Board' ==== | ==== AI-Thinker 'Test Board' ==== | ||
| - | The AI-Thinker board is an evaluation board with an onboard STC15L204EA microcontroller along with a relay, buttons and LEDs on all GPIOs, a relay, a buzzer, LDR, a socket for NRF240 modules, CH340 USB to Serial converter and DIP switches allowing different IO routing configurations to be setup. A small adapter board connects the normal ESP8266 modules to a pair of 2x4 headers. The board is widely available from a number of Chinese vendors. | + | The AI-Thinker board is an evaluation board with an onboard STC15L204EA microcontroller along with a relay, buttons and LEDs on all GPIOs, a relay, a buzzer, LDR, a socket for NRF240 modules, CH340 USB to Serial converter and DIP switches allowing different IO routing configurations to be setup. A small adapter board connects the normal ESP8266 modules to a pair of 2x4 headers. The board is widely available from a number of Chinese vendors, sometimes called a Coexistence Module. This is not the cheaper AI-Thinker "yellow board" (which should have its own entry on this page). |
| === DIP Switches === | === DIP Switches === | ||
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| This is the right-most switch when the USB port is at top. Controls routing of some of the IO and signal lines. | This is the right-most switch when the USB port is at top. Controls routing of some of the IO and signal lines. | ||
| - | | **No.** | **Label** | **Function** | | + | | **No.** | **Label** | **Function** | |
| - | | 1 | GPIO14 | ? | | + | | 1 | GPIO14 | ON=AC relay controlled by ESP8266 GPIO14 | |
| - | | 2 | DL_MCU | ? | | + | | 2 | DL_MCU | ON=AC relay controlled by MCU | |
| - | | 3 | CH_PD_H | ON=Enable pull up on CH_PD line of ESP8266. | | + | | 3 | CH_PD_H | ON=Enable pull up on CH_PD line of ESP8266. | |
| - | | 4 | GPIO0_H | ON=Enable pull up on GPIO0 line of ESP8266. | | + | | 4 | GPIO0_L | ON=Pull ESP8266 GPIO0 down for flashing. | |
| - | | 5 | GPIO15_H | ON=Enable pull up on GPIO15 line of ESP8266.| | + | | 5 | GPIO15_L | ON=Pull ESP8266 GPIO15 down (normal during boot) | |
| - | | 6 | GPIO2_H | ON=Enable pull up on GPIO2 line of ESP8266. | | + | | 6 | GPIO2_L | ON=Pull ESP8266 GPIO2 down for ? | |
| - | + | ||
| + | ===Relay=== | ||
| + | Normally open, it can bridge the two AC terminal connections together. See above for control. High level closes the relay. Handles 3 amps at 35v DC or 3 amps at 250v AC. | ||
| + | |||
| + | ===Buzzer=== | ||
| + | Annoying. Apparently controlled only by MCU? | ||
| + | |||
| + | ===CDS Light Sensor=== | ||
| + | One is installed on the board, connected to the MCU. Holes for another wired to the ESP8266 ADC are in place but not populated with a sensor presumably because this version breaks out the ADC for independent use. | ||
| + | |||
| + | ===Schematic=== | ||
| + | What is apparently an older version may be found in [[http://www.esp8266.com/viewtopic.php?f=13&t=480|this thread.]] | ||
esp8266-test-boards.txt · Last modified: 2016/06/16 15:55 by livetelevision