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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)
8 P( ] ]% d5 t7 m, f" s ]- #include <ESP8266HTTPClient.h>3 H2 }% ]# }5 c6 h9 i
- #include <ESP8266WiFi.h>
{$ p/ p+ o$ j" x8 v' m A - #include <ESP8266WiFiMulti.h>
! u, C; M4 T4 Q" m - #include <ESP8266WebServer.h>
4 p3 ?; S% \0 m3 n( R, p - #include <arduino.h>2 m1 H2 J+ M \3 d4 l
- ESP8266WiFiMulti WiFiMulti;! V; v# O: @) U5 @
- ESP8266WebServer server(80);
' ?+ P- O/ r. X2 K - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& W; Q' p W8 e7 a7 D - ADC_MODE(ADC_VCC);' U, B9 B) P! c- H8 ?( Q& D a
- void setup() {# R, V( G& D8 u L( L5 a' \/ R. r" N+ ~
- Serial.begin(115200);
4 O9 c3 G% j" C - Serial.print("\r\n\n");
8 w* Y5 i$ y, b) K) x: e1 B, ` - pinMode(2,OUTPUT);
( h% w( Q5 ^8 ?8 v; N/ K ]; ~ - // WIFI
' p" U( y& h9 d - WiFi.mode(WIFI_STA);3 a8 [6 S2 H! Z# W8 h o+ e3 ^
- WiFi.hostname("Sparkle");
( s* R, u/ M! O, { - WiFiMulti.addAP("wifi ssid", "wifi password"); {; G) S2 F9 ?' d
- int tryNum = 15;( x% Y* |8 _8 C7 d; R) p
- Serial.print("Connect WiFi");, x8 Y6 b( O; Z+ o c' X
- while (WiFiMulti.run() != WL_CONNECTED) {
# W) w( y: J5 N5 R - digitalWrite(2,0);
8 ~8 k' N& o3 c% m - delay(200);4 m6 m z5 m5 n: J& _
- digitalWrite(2,1);. k( E/ v9 h _- H% j! R
- delay(300);: K$ d0 F' C/ [
- Serial.print(".");
1 s$ |9 i% l, ] - tryNum--;" j! I7 J1 ]1 s6 X8 l
- if (tryNum == 0) {+ N j! G; t: n2 F; R# z! y& d, Y
- // 1min
( l) W: v) f f' X2 e! H - // ESP.deepSleep(60e6);
" p+ ]" S5 k4 B) T! @& c - ESP.deepSleep(0);
* r6 P, m8 N' J- h$ |. i5 _ - }; d% p/ w3 p+ w+ v7 Y
- }
$ _- I! C/ e( k- ^5 \$ i - Serial.print("\r\n");
& O2 @" Q( z/ V! Z1 U. V, X5 E - digitalWrite(2,1);
3 O/ Y- P9 A; G6 @3 B- E, E - Serial.print("IP address : ");8 g K) M/ K" e; p* V D% d6 k
- Serial.println(WiFi.localIP());/ F, @9 f) D/ t% g5 l9 W
- server.on("/", HTTP_GET, [](){
2 U9 U& N; L+ S - server.sendHeader("Connection", "close");$ p1 `, Y: O- |# k& Y7 \
- server.send(200, "text/html", serverIndex);2 x+ [$ j( y1 k- T( O1 X
- });
2 S$ R. }( W/ {' S" O - server.on("/update", HTTP_POST, [](){+ |5 d, T e8 J
- server.sendHeader("Connection", "close");
. i& }1 a# H0 ~9 k# y# ` - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 H$ ?! R( x$ N0 I+ I% } g7 h - ESP.restart();$ j% _6 m$ n) _# J
- },[](){4 ~# W+ w3 }2 W/ U& H% b. X3 o
- HTTPUpload& upload = server.upload();- n% d1 t& o4 f0 }* T
- if(upload.status == UPLOAD_FILE_START){* A, I/ b E7 Y9 p
- Serial.setDebugOutput(true);( E* o/ q7 {, w, b; _8 ^# L
- Serial.printf("Update: %s\n", upload.filename.c_str());2 ]3 F! i+ H; A% |7 a6 ^
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
9 G O4 s k4 n! M1 n - if(!Update.begin(maxSketchSpace)){
2 w6 p4 R6 w& L1 e+ d. X: O% | - Update.printError(Serial);3 o( p7 z+ b7 W3 T/ o7 i& q
- }
4 G/ [9 ?0 b' f! D- C - } else if(upload.status == UPLOAD_FILE_WRITE){* [1 k! K' x5 l$ a+ ^1 I
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){# S6 L- L% e6 D7 }+ r
- Update.printError(Serial);0 }. j R1 f" z4 `8 `+ \2 P
- }- X* M. H! F. r& A! B1 y
- } else if(upload.status == UPLOAD_FILE_END){
# W- D4 M2 r7 d& {8 c% e. t - if(Update.end(true)){# }6 K K1 J% ?+ N6 d2 a
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);# W. Y e5 U+ f. ~. G! `/ {( ]3 u
- } else {
/ N, h5 X# T% q6 K7 q; ^! V% t - Update.printError(Serial);, k1 j3 j% o$ P, A+ M O
- }
( c% N- r2 ^2 j/ m$ B5 G6 p B - Serial.setDebugOutput(false);; N/ W$ r( A# j9 i2 F( u1 H
- }. l0 V! D) [& I: u3 l7 m0 I
- yield();
+ C0 ]8 N5 _6 e9 O2 q, X - });
( N4 K4 `) O8 d2 G# Z* ?& q" M -
- A2 J5 D. s v4 J2 V, w4 W7 C - digitalWrite(2,0);$ L+ G1 N" V1 A4 T7 H3 F# |9 ^
- mainAction();
. B+ r- q! Z7 G- O - if (digitalRead(0)){
- @5 [: B( K. t; M8 \; a2 E - ESP.deepSleep(0);
1 W$ z6 w$ J& q2 o - } else {6 V9 b9 O) k/ p/ F# E Z/ }8 |
- server.begin();$ _1 L3 B! M9 F4 `# V* a2 X) A( @3 Q2 |
- }
7 Y0 v6 L1 O$ J1 v - }0 c/ l& Y0 y1 c: C
- void loop() {
7 Y* m& D) _& O1 Y R( n - server.handleClient();. c0 H! H; k$ j n8 U
- delay(1);
( B/ h% j) b( G" j7 A$ ?* @1 y2 I7 e - }
~. \1 l/ m6 v, h9 D0 r - String doGet(String url){
& ~$ g! Y; U0 p3 V7 c5 b - if ((WiFiMulti.run() == WL_CONNECTED)) {/ S) H" R8 z( |3 S4 D: z* o
- HTTPClient http;' {0 @2 \ k, o1 P
- Serial.println("[HTTP] begin...");
( x+ a2 O4 ]% ] e! h( B( P - if (url.startsWith("https")) {+ n7 J* \) A$ a+ P. j% Q# N* h
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 a2 a! ~ y& `4 H7 M
- } else {
3 l9 d( [" g O: F% @/ {/ G - http.begin(url);: `1 t2 R9 @% W/ t
- }1 X; [; x- W- H
- Serial.println("[HTTP] GET...");* z4 w) s5 S' i$ q( n' M
- int httpCode = http.GET();: i6 U+ g1 G4 s; v p4 F1 L
- if (httpCode > 0) {
7 ?: c6 v4 D/ R1 n1 A - Serial.printf("[HTTP] code: %d\n", httpCode);& B- a2 U' Q4 r/ L" h- V
- if (httpCode == HTTP_CODE_OK) {
- B8 q$ v5 n, ~, |) G* o# G - String payload = http.getString();
, @6 ?7 B/ d8 C4 U- | - Serial.println(payload);
0 O, j f: z( g& S8 _$ R/ y% n - Serial.print("\r\n");
3 s+ _# g4 d! O$ W5 {5 r2 f) r - return payload;3 O: X2 z8 k: {8 l! L- n' }
- }0 N3 C; e8 u) D; W+ l9 Q
- } else {5 f2 S7 _4 R0 f, y, R7 J4 E
- Serial.printf("[HTTP] GET... failed, error: %s\n",1 @; S+ c; N' q- W
- http.errorToString(httpCode).c_str());$ q! v7 H) x: }4 V
- }
6 d! @" Q# t5 N/ q. P - http.end();7 k) B2 Z. X/ y, H- w
- return "";
f" X( m: `1 G$ c - }
- I# C5 Q6 @7 S: Z8 Z+ u( {5 P - }
, {+ j+ H5 L9 M5 ~; e - void mainAction() {
$ ~+ K. C" \5 _' J - // 发送请求5 N0 m# P( i) m$ W6 k
- doGet("http://google.cn");1 i v" o: p" s1 X- S0 W
- }
9 m4 t$ I/ D- ~. `
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