esp8266-test-boards
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esp8266-test-boards [2016/05/25 04:37] livetelevision [AI-Thinker 'Test Board'] |
esp8266-test-boards [2016/05/25 08:25] livetelevision [AI-Thinker 'Test Board'] |
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| ==== 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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| | 4 | GPIO0_L | ON=Pull ESP8266 GPIO1 down for flashing. | | | 4 | GPIO0_L | ON=Pull ESP8266 GPIO1 down for flashing. | | ||
| | 5 | GPIO15_L | ON=Pull ESP8266 GPIO15 down (normal during boot) | | | 5 | GPIO15_L | ON=Pull ESP8266 GPIO15 down (normal during boot) | | ||
| - | | 6 | GPIO2_L | ON=Pull ESP8266 GPIO12 down for ? | | + | | 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