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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)$ s b+ ]" u; k5 K% S) o B$ Z, u
- #include <ESP8266HTTPClient.h>
0 L9 u$ a% d& b0 l! @ - #include <ESP8266WiFi.h>5 I7 _: Z9 j w+ e/ @: w! d( ~" y7 F
- #include <ESP8266WiFiMulti.h>
5 U8 H5 G, a' D% e - #include <ESP8266WebServer.h>
, v) C7 s; B" z4 B$ ` - #include <arduino.h># J) U# L* d% T
- ESP8266WiFiMulti WiFiMulti;% x. B+ S4 \8 j% ~' w5 v' M
- ESP8266WebServer server(80);
! U5 l2 O# Y; h# }+ U - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";6 H/ \% u' i! B3 I, p& f
- ADC_MODE(ADC_VCC);
/ L! s+ a# ?7 z: } - void setup() {* `3 i& ?! v) D1 _9 r- Y
- Serial.begin(115200); y1 i5 g. P5 m
- Serial.print("\r\n\n");/ R2 J1 p! Y8 N; A9 J
- pinMode(2,OUTPUT);, S) ?) \8 a+ F6 N+ G+ i
- // WIFI# n3 ?$ F$ l5 h# g6 N$ g
- WiFi.mode(WIFI_STA);$ f, I+ K5 B! j' ~5 l" @
- WiFi.hostname("Sparkle"); K' `% h- S% Z" u2 r. V
- WiFiMulti.addAP("wifi ssid", "wifi password");
& n0 { h1 {% ^" S - int tryNum = 15;
& A9 k% ^, Z5 S- P, n - Serial.print("Connect WiFi"); m0 A0 d" B1 {, k1 z7 O2 b( s5 n
- while (WiFiMulti.run() != WL_CONNECTED) {
* O1 r. W2 t0 s; R0 z7 x* d - digitalWrite(2,0);
1 \: a+ w M% \8 d - delay(200);
4 d* s8 g( y* f - digitalWrite(2,1);
9 k6 e8 n0 U0 R9 [% {( ^. C - delay(300);
/ @6 _' q/ O" Q1 A - Serial.print(".");
* W6 W0 i7 u, x! }5 [" j/ e - tryNum--;7 s7 P6 t1 y5 y# L! f! ^1 W
- if (tryNum == 0) {
% n5 E5 h' S6 T% J/ @1 B - // 1min
- _" w3 z4 I- X - // ESP.deepSleep(60e6);; [- ] _: p9 h. r0 }) H; [8 e
- ESP.deepSleep(0);% ~& U* ~' R9 \0 H' e
- }- p5 T3 ~* ]( P7 P4 u. J, t" X
- }
- z7 @# a5 j) o! ]. r6 J - Serial.print("\r\n");0 k7 m0 L% ]3 Z$ ?: I: a
- digitalWrite(2,1);( ]+ q4 R; c9 V) `, c) |" t
- Serial.print("IP address : ");' T: Z" Z; x0 F/ n( ^
- Serial.println(WiFi.localIP());
3 X/ u7 n8 _9 V! r( u% D5 P8 Y3 f - server.on("/", HTTP_GET, [](){
' \; `6 D' C; T! X# m: Q9 k - server.sendHeader("Connection", "close");
4 J% f, l5 v- l; a3 H - server.send(200, "text/html", serverIndex);
) u6 q" _# O( Y' p* L" O% R4 h" c - });
( Y/ v, N4 N. X1 E% y - server.on("/update", HTTP_POST, [](){0 p( I' d4 h; W
- server.sendHeader("Connection", "close");2 B& i$ K. B! ]* U
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
& f' B3 T- l& H% z - ESP.restart(); I+ b/ V: b/ S
- },[](){* d. y* R& f2 j% L
- HTTPUpload& upload = server.upload();
4 c' \; V5 X, R, W8 d- } - if(upload.status == UPLOAD_FILE_START){
4 B( v) P% w* L - Serial.setDebugOutput(true);4 t& d! }6 q0 h
- Serial.printf("Update: %s\n", upload.filename.c_str());
/ y& P) T. H/ j4 X8 ]- G - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
6 W: x: V" w$ v* `/ t- _4 w1 L* T; a - if(!Update.begin(maxSketchSpace)){# n3 n1 N9 C' p- M4 t
- Update.printError(Serial);% g" j' @/ x8 z* a9 f
- }" l6 m9 o. N% `7 Z
- } else if(upload.status == UPLOAD_FILE_WRITE){
; p) v8 B3 ^' p# S7 H; Q0 z - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
' @4 z6 s) X; L/ T - Update.printError(Serial);4 H% o7 {! S- Z) N' G
- }0 c1 [7 z8 c+ y5 S, D) b
- } else if(upload.status == UPLOAD_FILE_END){. y' t/ d1 c5 o" t5 g
- if(Update.end(true)){2 J, V$ ~" D& T" `5 @7 @7 k
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);' U4 {/ u1 O. v- x0 R7 c
- } else {6 K" z3 h, y" t6 t7 O; ~
- Update.printError(Serial);
4 N( n" d+ n; `) D - }& l# |4 N1 R4 l$ ~# ~' ~
- Serial.setDebugOutput(false);- r E, T r) \! f
- }" ?- S" X# `; t( c
- yield();# N1 A: o, T, x/ P( p( _
- });3 H {% }9 M4 ?1 H
- - ^- m7 L2 `. k4 S+ p
- digitalWrite(2,0);/ t3 Z( h& k: R; l8 r+ t# i& }
- mainAction();
, q- V: Y3 B# I) g4 }6 z- g - if (digitalRead(0)){
& h! w: Q8 x3 q$ U, [ - ESP.deepSleep(0);5 W' v' b! P. e5 u5 i' \, z
- } else {* R _* z6 _1 j/ a5 }
- server.begin();
N8 z/ @! B( p( V - }
& B# ` F* e& A4 F* J, ]* n: _ - }; V6 @' J0 B5 P: p
- void loop() {
4 @, y' l2 y. p. m - server.handleClient();
9 p/ `! u6 P5 ^ Q* c - delay(1);
* ^7 ^- }6 s' T! s* J3 ~2 C - }' w, k8 F( M. \0 ~' @. w: C/ c
- String doGet(String url){& D1 [6 D- {0 m1 e8 q/ ]9 N* Y
- if ((WiFiMulti.run() == WL_CONNECTED)) {
$ `0 g0 U# f( i) ^; p3 r: T# X: V$ L5 W - HTTPClient http;" m! ?! \& o- y) g2 e
- Serial.println("[HTTP] begin...");- P0 X# {) @- ]. e3 H0 D' I( \
- if (url.startsWith("https")) {( A: k* q4 e: K( Q5 j/ P/ S! u. Q8 Q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
$ l" l q3 Z* O0 r - } else {0 a" g; [- Y5 c- E# ~9 \4 x5 F
- http.begin(url);
# d3 D% c9 R- T- H6 @6 e& r - }/ {" y1 a/ m4 J. L
- Serial.println("[HTTP] GET...");
# b1 d* m8 R2 D, W- y2 `9 j( y - int httpCode = http.GET();
9 T, `/ w- e- O, Y( ?0 b7 d% p6 J - if (httpCode > 0) {
) }' h o# F, A; x$ O - Serial.printf("[HTTP] code: %d\n", httpCode);" y5 d) S4 Z8 O/ `& b( G6 ]2 O2 [
- if (httpCode == HTTP_CODE_OK) {
n( U& z9 \ l - String payload = http.getString();% [1 k8 }9 X, t Y
- Serial.println(payload);( J! \ S/ u! A
- Serial.print("\r\n");
2 {' ?+ ?. O- o& R. \ - return payload;
- r/ T9 t# r0 x. |; G - }
1 B: @2 V/ Z' `8 Z! \( ? - } else {, s5 S& I& \+ m3 |; ~, H; S) b% B
- Serial.printf("[HTTP] GET... failed, error: %s\n",3 R0 l5 @# U7 K) h: m, x6 `% N
- http.errorToString(httpCode).c_str());
9 E- h) Z! o' n' b; O - }
5 e X. q2 E# w: J8 o7 j - http.end();
' x$ l B' O' c% i2 _ - return "";
/ V' N' R8 M$ v! b' g0 G& M" w9 [ - }( z# m' o9 t, X ]4 C, B* j
- }
4 O9 K/ r1 U/ U( B - void mainAction() {; ]' D6 R5 ~4 w2 J# d
- // 发送请求
" N+ s l8 t. s7 ~5 W - doGet("http://google.cn");
' J/ L- P/ i8 K! u+ ` - }
. ]8 g# L: I" {6 k: l
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