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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)& @0 L( z/ w6 L; G0 h
- #include <ESP8266HTTPClient.h>
- u+ T8 p2 k/ _, f4 ~) G - #include <ESP8266WiFi.h>
' M3 o) _, ^3 |! t6 h. z - #include <ESP8266WiFiMulti.h>6 r5 m6 }3 j+ U) \% _4 C
- #include <ESP8266WebServer.h>
5 h$ }$ k U h - #include <arduino.h>
6 v, s" Y7 {: I - ESP8266WiFiMulti WiFiMulti;$ {# i" w3 Q4 |0 O
- ESP8266WebServer server(80);) Q9 u% p; l' g6 u! q
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
u( X9 N+ C3 n. M7 G% W - ADC_MODE(ADC_VCC);
5 j" j- ^7 a! T; {! `4 H$ |% U - void setup() { i6 I- d6 `" P
- Serial.begin(115200);
3 ]6 B5 r! E% q0 ^) }+ j" V: } - Serial.print("\r\n\n");4 @$ ]& ^' Q1 A/ g l+ C7 o3 D0 ^
- pinMode(2,OUTPUT);
' r% q0 b0 F3 J& x9 j3 m' I1 F( h7 a - // WIFI
+ B4 x5 s f1 h% t& m - WiFi.mode(WIFI_STA);
' f4 d5 }3 k- _$ X/ \& F - WiFi.hostname("Sparkle");6 k6 m2 R+ h: R! C
- WiFiMulti.addAP("wifi ssid", "wifi password"); Y7 ]2 W3 E# N, g( ~. B, F
- int tryNum = 15;0 ~& a }) v* F b; M
- Serial.print("Connect WiFi");4 D7 `+ o/ B4 J9 Y
- while (WiFiMulti.run() != WL_CONNECTED) {
: s w/ ~8 t* F$ l1 m Q& U5 D - digitalWrite(2,0);
% ^" w. p% w7 f: G6 x - delay(200);' x: e _. m1 k# s
- digitalWrite(2,1);
' `! b( C, D( T6 k1 W' v - delay(300);" {- Q$ x/ D3 e, S- F3 k. j
- Serial.print(".");0 N6 R6 T9 ~- t& q/ Z* h0 }1 j0 \
- tryNum--;
, Z" [( ^, e/ Z4 T: G2 n - if (tryNum == 0) {
J$ Z$ R. l2 d - // 1min
6 o6 R' [! t( w/ {& o - // ESP.deepSleep(60e6);3 \; K! N7 D$ |3 ?) k! C
- ESP.deepSleep(0);1 \9 b3 ?7 @/ T
- }
. A4 R( s7 P U$ h - }' R7 N1 U+ H* W
- Serial.print("\r\n");7 k+ y( R* _5 Q' z2 o% T( |% I
- digitalWrite(2,1);
. t# X. k! K5 m" I- j: Y3 B - Serial.print("IP address : ");$ i* o6 ^6 }3 |7 k) m
- Serial.println(WiFi.localIP());
n2 K: k: E: C' s' {+ z - server.on("/", HTTP_GET, [](){' j0 @' f0 U5 Y* A$ u
- server.sendHeader("Connection", "close");7 a, n8 x6 C4 ?6 ~7 Q f& P
- server.send(200, "text/html", serverIndex);* d9 v- s" D) B4 J
- });
6 g+ ]9 e, s; t" {+ q: ~7 ]6 ~ - server.on("/update", HTTP_POST, [](){
[9 Z9 x, F1 M - server.sendHeader("Connection", "close");
* a( C4 v u; M+ X0 Z# P - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ U+ J$ M4 p. L8 N( t
- ESP.restart();; L7 V7 ?+ r( P/ C5 ~
- },[](){0 W0 P7 @, g7 Q5 Y
- HTTPUpload& upload = server.upload();
) q+ V/ i) L2 V8 D# |6 x1 `; ` - if(upload.status == UPLOAD_FILE_START){( x" v1 ]9 R: Y) V# A2 c- V
- Serial.setDebugOutput(true);
- Q) {$ L1 [' @5 l/ \2 A - Serial.printf("Update: %s\n", upload.filename.c_str());. d0 L6 {: p9 e. C- H
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
6 e; X0 G7 k" L' g$ ^- ?, m - if(!Update.begin(maxSketchSpace)){9 {! |6 _: @) i# `+ _
- Update.printError(Serial);3 S+ l W6 c( M$ }/ A% u2 Y2 O: d& t
- }" I8 t3 Y) I8 N6 ]' @
- } else if(upload.status == UPLOAD_FILE_WRITE){
5 G6 E* d$ R* B+ y8 T - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" | c* k- V- m( L- w# V/ C4 b* c
- Update.printError(Serial);3 `# [+ d4 x8 Z) l1 U/ p% F* Q
- }* X3 x, F; P5 m" w
- } else if(upload.status == UPLOAD_FILE_END){4 b- N# j f4 k% W# f
- if(Update.end(true)){
4 M6 f N, |+ t- x# n9 `6 D3 V - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) {; P/ J$ K- _! B$ x
- } else {( O' n2 @% X( e% X6 L$ ` z
- Update.printError(Serial);$ o! a. [; y' |7 _0 a( d
- }7 k4 Y/ q0 v" m2 v; b! x
- Serial.setDebugOutput(false);0 _4 ^4 B/ c' b+ y6 V. B
- }
- ?9 N; ^8 [( E2 p/ C' [ - yield();5 [( Z7 H, y$ K0 t
- });
2 q+ J3 \5 m4 w+ S2 S& b z -
+ j% [; F2 Z4 O9 C* w& m1 F o/ F - digitalWrite(2,0);+ l6 {+ ^2 W! c* c8 i
- mainAction();
3 ~7 b# r& u4 ^) d0 D; \# b) G - if (digitalRead(0)){6 n! T. ?( p$ u. ?! R
- ESP.deepSleep(0);
- R8 s2 L- l C: y& n+ I6 ] - } else {. W# `6 p# L% B4 s$ ]. T; R
- server.begin();
1 ?+ h( `' p# Z' ~0 u1 ? - }
0 D% `9 W$ p% S# K" w! ^ - }/ W9 G; z, {& [$ c, {& u) h8 D
- void loop() {
! k, v8 L6 W0 c: G- a8 W - server.handleClient();: g( x3 d5 g$ N/ c4 Z6 G& Y
- delay(1);: n# H7 l, y2 U
- }
1 l3 q+ x, l- d$ R7 h: ? { - String doGet(String url){/ |: z, U% F" ?5 r/ @2 _' i9 K: e6 V
- if ((WiFiMulti.run() == WL_CONNECTED)) {; \5 e; I) H- k& N7 P& _7 L
- HTTPClient http;" T; @2 u2 ?4 }7 Z
- Serial.println("[HTTP] begin...");
6 J, a* B+ c& ~ - if (url.startsWith("https")) {
7 ?7 s/ R. v2 H% e1 H* x# ]' t' u - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 c4 K; l V/ L" J ^9 r7 M
- } else {: c3 [0 V9 S- p, r" P. ^8 S" }
- http.begin(url);
9 [2 P H, T3 m5 Y6 j" [ - }% b. j, C5 ]9 \% o/ L/ r" v
- Serial.println("[HTTP] GET...");
. E7 [2 V7 {0 Q. N( B - int httpCode = http.GET();! D+ ^' m4 J; ^/ G+ D! P
- if (httpCode > 0) {2 a. V# i, }4 Q2 K+ C
- Serial.printf("[HTTP] code: %d\n", httpCode);
X+ z& u7 I2 z7 W9 l9 \1 t - if (httpCode == HTTP_CODE_OK) {2 A3 c! y, s- K% i
- String payload = http.getString();
2 m% ^$ S2 a, R k; k f4 f" t - Serial.println(payload);( K$ j& J/ x& S5 O
- Serial.print("\r\n");! t0 E- f# ~/ t6 A9 X% l
- return payload;
3 N* d: y/ U* g. b: C x. A) X - }! B! X4 P2 T% \$ V$ [7 G
- } else {
3 F; O) q) C7 z4 x4 ?, P - Serial.printf("[HTTP] GET... failed, error: %s\n",& e6 V. a* e( J
- http.errorToString(httpCode).c_str());2 q7 m* x" `; t# C' d) }) B
- }+ G7 j9 l" g. E: {
- http.end();5 c3 ]$ a( r; Y# O1 v: A
- return ""; w* }0 c8 r& T0 d" ?* m
- }
- a# a9 }! e/ N3 p! r) G - }& [( D/ q! \% _$ h; ^, \$ r% c
- void mainAction() {
0 b% o1 i3 r c$ a9 P4 u1 Z( q - // 发送请求. H( D* [! K0 b3 ^/ ]/ q1 u
- doGet("http://google.cn");
: |& ?$ e `5 Z2 w3 z R; X8 [: A) u - }
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