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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)
" C# ]7 D4 S) a: ?6 w. N$ H; Z- #include <ESP8266HTTPClient.h>
. w$ x) s) H) A1 s$ Y& X3 \ - #include <ESP8266WiFi.h>
$ i6 `. c& y L# _ t3 g - #include <ESP8266WiFiMulti.h>$ B v- q: Z2 X; f0 ]% D5 f0 `
- #include <ESP8266WebServer.h>4 }( R X* p2 k- W+ I
- #include <arduino.h>' M3 j2 @2 @) ^; f/ t) b5 N
- ESP8266WiFiMulti WiFiMulti;
3 {( T, v- u! \4 t' N - ESP8266WebServer server(80);
1 @% j3 z6 {0 _ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
" r9 [6 B( a( @6 Z4 _ - ADC_MODE(ADC_VCC);
7 d! d6 M, p+ s - void setup() {
" p4 p3 |) n+ X4 p5 b; k; _* { - Serial.begin(115200);& [7 e5 C* `7 I G ^8 ~
- Serial.print("\r\n\n");# {. b- Q# `. f# c
- pinMode(2,OUTPUT);
* G- v6 ]3 A! M% z# A1 R) g - // WIFI, h9 ~ k1 I& Q5 W/ q6 T9 W
- WiFi.mode(WIFI_STA);
" l8 c4 l! |& Z& x4 c! J - WiFi.hostname("Sparkle");
% j0 c( q7 _" o0 o% H - WiFiMulti.addAP("wifi ssid", "wifi password");9 q& d" [, E; [% u6 p! E
- int tryNum = 15;" [! s @2 r. ?8 c7 K% d
- Serial.print("Connect WiFi");+ k: k. x$ a! E
- while (WiFiMulti.run() != WL_CONNECTED) {# Y1 x) G+ ]7 y' ~0 W) t4 @* B# |( e( w
- digitalWrite(2,0);- N7 D: @5 c; w( v2 i& n
- delay(200);+ ?4 h; V% }( s+ J$ i" ~5 T
- digitalWrite(2,1);1 P* x4 d* j5 `5 U, e# M- \
- delay(300);, x6 z3 T7 v# x) z9 o p& l* Q0 w
- Serial.print(".");
$ `( n$ k( i3 P! _3 u - tryNum--;
& O' y$ v% T1 T, ?% Y - if (tryNum == 0) {5 ?# E! O' Z7 M+ U( R3 m8 n
- // 1min% o' s) m8 r( `" ]/ ~
- // ESP.deepSleep(60e6);
: p, J( w+ x, Z - ESP.deepSleep(0);$ C$ u9 X% t- O0 d" w$ q5 F
- }
$ @- x( z) C6 \; }% c6 j# [2 \9 m" o - }, I3 |: }2 I' z$ U$ ~) a$ h
- Serial.print("\r\n");$ r6 [7 j. x9 t# Z2 s
- digitalWrite(2,1);5 } {3 k! w- } o( ~! e
- Serial.print("IP address : "); ^# w; C$ ]( ]) j1 E" i7 ]
- Serial.println(WiFi.localIP());; O4 f& o- C+ m8 l i
- server.on("/", HTTP_GET, [](){
% x( ~$ C3 {- u8 B - server.sendHeader("Connection", "close");
, _7 l% a; N$ J) }; a( j6 Z8 S - server.send(200, "text/html", serverIndex);
) Y* s( C$ ]% `/ k+ Y* u - });: t6 W! v* x5 S4 V* Z
- server.on("/update", HTTP_POST, [](){8 x+ `4 G5 _$ R- u
- server.sendHeader("Connection", "close");9 |8 f. N# \6 n9 j( a: I: E+ n6 T
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 y M7 F0 m8 U4 x
- ESP.restart();0 g! R1 U5 k8 k
- },[](){' E- H1 v% @! }, d4 x! f7 ?
- HTTPUpload& upload = server.upload();
1 I0 B! P( ^; h+ R2 ?' `: t" d - if(upload.status == UPLOAD_FILE_START){
; R# |1 Z& r3 t& `- Y5 ` - Serial.setDebugOutput(true);
& j" Y1 r: |0 p% p6 T( j$ j* k - Serial.printf("Update: %s\n", upload.filename.c_str());
( S/ C7 p( f5 K' }% |0 G f6 C0 a - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
2 w! G% Y2 D+ M5 b W A - if(!Update.begin(maxSketchSpace)){
4 _" R b3 j9 N - Update.printError(Serial);1 Q" D7 q3 m1 `
- }. ~! w( F3 U9 C0 W
- } else if(upload.status == UPLOAD_FILE_WRITE){! R/ C3 y0 `( S2 K
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
j* s" M/ S7 ?* j - Update.printError(Serial);; ~4 c$ l7 L9 _7 C
- }
- v& e; K) U1 L! o0 a8 d+ j! Z - } else if(upload.status == UPLOAD_FILE_END){
1 L3 ?1 Y6 S. Q" \) |' c - if(Update.end(true)){- n$ N: Z7 i. m
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize); z- o/ D L" b; |% g$ k7 d
- } else {
" b' s4 }( ~' ]6 p - Update.printError(Serial);' p& B7 D$ y( j" L
- }- ~( H8 F! n4 J/ \
- Serial.setDebugOutput(false);4 _% C3 N8 I+ m2 {! l7 H
- }
& q5 s f- f2 K; z! k - yield();
6 [( V0 q9 L$ H( _ |+ K/ A - });
" L: }% K; y7 c -
, K; b4 i* O9 \: R - digitalWrite(2,0);7 I1 G6 ]" T5 a) I; v m
- mainAction();5 K# D1 T4 ~; I4 [5 e
- if (digitalRead(0)){
- [/ P8 w, G+ H3 `) ?3 Y, W - ESP.deepSleep(0);( {9 Q4 j8 b- n8 L6 c; H
- } else {) y; E6 i) g: ^5 l+ f
- server.begin();; W$ o6 |# H2 Q4 s: _# X: E, Q
- }
# I. H* A, _1 G+ D" } - }
5 G+ N# K, @9 z# u/ \6 Y/ U - void loop() {
3 A8 I- ^6 c% N5 \! o - server.handleClient();, t8 Q" u* ?5 d8 E5 r5 i8 j
- delay(1);( e" m- j, U V) Q6 d. t( b
- }! R$ R S5 J( \9 }2 S. j& J8 O
- String doGet(String url){* p/ Z* R4 t; V# o' o
- if ((WiFiMulti.run() == WL_CONNECTED)) {
& v6 K# q+ l( f8 f9 A - HTTPClient http;7 V# Y; U, ?; f# O9 F% Y3 c7 v
- Serial.println("[HTTP] begin...");2 O2 F6 `5 [* {6 p
- if (url.startsWith("https")) {" u* }. L& @9 ^) n4 ^7 T- \' s
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
1 f2 j5 ^) w- C" @$ }; c - } else {
" }6 q% H6 v0 ^: }( ?, ~; b9 s - http.begin(url);$ R! r) Y$ y- ]8 E: {: S
- }
6 [: {" \" I4 Q% j% P% @9 u# m - Serial.println("[HTTP] GET...");' |, S# [8 g% ^6 S
- int httpCode = http.GET();
4 C/ A0 y- o4 G# f: P - if (httpCode > 0) {. q% T; a2 D/ m1 D* `9 X7 j9 y
- Serial.printf("[HTTP] code: %d\n", httpCode);0 {( ?* r1 ?1 N! ?9 G
- if (httpCode == HTTP_CODE_OK) {
4 v( F4 J/ y1 D' C u Q - String payload = http.getString();9 _6 t; \8 v$ w9 D, M* a
- Serial.println(payload);. D. `/ e! M9 ?! z1 T) R8 |
- Serial.print("\r\n");% s, ]2 k# F( v/ s$ @( v8 |
- return payload;. q% t$ v" f& e Q! x: [. ~
- }8 |' C! o4 f. @5 C$ Z, K
- } else {
* ~! m+ r$ w7 |8 E P - Serial.printf("[HTTP] GET... failed, error: %s\n",) O- l3 k% {; {
- http.errorToString(httpCode).c_str());
\0 S9 a. p# k# Z7 V - }
' }' V4 Y j; n, z - http.end();, a9 b: Z' t, E1 N; E
- return "";5 K% t0 l: V5 o2 {: x+ m, v" Y0 _
- }
0 b* ?9 ~" x! Y7 n% ?( l V - }; S$ Z' u2 J, ]$ E8 F |4 A: z; Z
- void mainAction() {
& N8 z Q4 o0 i' }$ B - // 发送请求 `1 u% q! s! {( M; T
- doGet("http://google.cn");
5 {3 i. `4 @. C9 Y- _ - }
?4 W) ]3 S+ V3 s* ^
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