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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)
* l, t6 e7 [2 p, S- #include <ESP8266HTTPClient.h>
9 ]3 ?4 l& E8 J - #include <ESP8266WiFi.h>
4 _+ i; v, x0 Q# Q( \6 v" i - #include <ESP8266WiFiMulti.h>
7 d) S' U) B$ x - #include <ESP8266WebServer.h>' C6 ?: L; S! C9 z9 O2 ]1 L
- #include <arduino.h>
1 ], V4 e" L. O" p - ESP8266WiFiMulti WiFiMulti;
5 ]+ g5 T$ v3 s$ ~% x1 D - ESP8266WebServer server(80);+ C1 ^' j8 [# \; j3 ?1 X
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! K; G' c i. ^/ S
- ADC_MODE(ADC_VCC); e: X5 v9 z# }5 [! m
- void setup() {
# ?$ m A: K b0 ?& A - Serial.begin(115200);0 t7 H5 a6 y E# o0 _% \/ f
- Serial.print("\r\n\n");
{& U; v) `9 U' D9 y - pinMode(2,OUTPUT);
/ L# z+ e7 m. i6 P5 s R - // WIFI
; `. S! ?' e1 s - WiFi.mode(WIFI_STA);
w! L }/ i+ @+ [. c - WiFi.hostname("Sparkle");7 ?6 N2 b+ i+ E M3 K/ G% ~4 a+ i
- WiFiMulti.addAP("wifi ssid", "wifi password");7 U- L% {. k4 C/ C; b
- int tryNum = 15;
: _% f$ Z4 I( S; W- p - Serial.print("Connect WiFi");
( L. T% w2 W% i& {& `. W% Y - while (WiFiMulti.run() != WL_CONNECTED) {
- G; _" u& S& d/ v0 \% F; K - digitalWrite(2,0);; f, c3 p+ Q o5 M4 e+ d' t
- delay(200);
6 l8 R) B3 B1 T% }8 Q% E - digitalWrite(2,1);; u5 @( A+ I/ h6 a
- delay(300);; @; J. ?8 V, F6 `" j- s
- Serial.print(".");
+ l2 {+ X' d: i/ @ - tryNum--;* [$ ?% @2 q5 q
- if (tryNum == 0) {
. v: v |+ t. T: q/ f- m - // 1min2 d- w, F: q( O3 {8 x/ |$ j+ b$ a- C
- // ESP.deepSleep(60e6);
/ Z% p# ]# x- p) s1 c- e8 C' v - ESP.deepSleep(0);
& \/ @- a. a3 g( X* C, X3 O - }! ]/ v1 j7 y7 l% _
- }
' _5 ~; X. G# p8 A$ q% Z- ^ - Serial.print("\r\n");1 N9 e" b: t p# E6 h- s
- digitalWrite(2,1);& V: m2 ~0 Z, e1 a7 J
- Serial.print("IP address : ");
2 z$ X M! p, F2 s9 o5 D+ ~ e - Serial.println(WiFi.localIP());! o* u3 [. F$ C; w, `0 z5 K
- server.on("/", HTTP_GET, [](){$ g5 T4 v% a- A% ~, ~; }1 P
- server.sendHeader("Connection", "close");* ~6 w; Y" y" I) p
- server.send(200, "text/html", serverIndex);+ r' n$ i) F- e$ w: u5 B! h; p
- });8 X3 Q9 D& {1 `. y% F+ b
- server.on("/update", HTTP_POST, [](){& O% [5 c: x$ o' q
- server.sendHeader("Connection", "close");
" D- o$ }& M9 |6 S - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ o1 ~. Z, f$ U# s; W) A! L
- ESP.restart();
" m5 y; H( I3 A& A - },[](){
; \ T; z4 ~, P& e* L. E! P4 |. [( I - HTTPUpload& upload = server.upload();7 G" R* h& y6 M5 y; B" j
- if(upload.status == UPLOAD_FILE_START){" P( |/ y! ^, l) |3 T j: I% Q. k$ ~
- Serial.setDebugOutput(true);2 ^; V8 ?" I$ Z6 M$ {1 p- N
- Serial.printf("Update: %s\n", upload.filename.c_str());+ F, n, G/ P8 E5 m- W6 ^
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;2 }0 X3 m9 ]% A0 P! h2 A: e7 `# P
- if(!Update.begin(maxSketchSpace)){# [) ~; v) s" l1 X% ^
- Update.printError(Serial);
5 P3 m( W% {7 e+ b) t8 R4 \ - }
9 A- ~$ r" Z% {& `4 ^- g+ L2 X+ t - } else if(upload.status == UPLOAD_FILE_WRITE){( ]0 r: v" a8 A9 B* Q
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){/ C% |! P7 k6 ~2 f
- Update.printError(Serial);
0 O _$ Y' T1 ?* X/ N2 m - }) \0 s5 y0 S: r& q: M# [, k
- } else if(upload.status == UPLOAD_FILE_END){0 i4 d7 A/ b' f$ Y$ f
- if(Update.end(true)){
2 H: r0 ~3 C( e/ p5 A4 m* N0 e - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
?" p) T" G; X; g6 q5 f0 u) H$ {7 U - } else {
( ]0 A% T: @7 z3 x8 Z - Update.printError(Serial);5 }5 a5 q7 q! w2 {( d( J
- }# k5 l* Q& {, c: J
- Serial.setDebugOutput(false);
6 T2 U/ s" S2 F - }
% u8 Z$ L6 k2 O: G* g* U - yield();
. ^( F/ g# b1 H ~) v2 i d - });
& O) b, M( q! K/ m -
, X* G- Z2 F# ~- R - digitalWrite(2,0);
- V/ h" z6 B+ C b0 }3 G8 {6 G' v - mainAction();' Q6 z# v) c" `+ `
- if (digitalRead(0)){
6 ~( ~. J1 `3 S! O W - ESP.deepSleep(0);
2 C* e k* J% V3 S% p, e$ [ A8 P8 o5 K - } else {
1 \0 a S+ Z2 b( L - server.begin();
3 T& E4 c- U, U# M- j - }
: t$ J5 [6 ^# h! A - }; }5 k$ q) w1 T
- void loop() {( u; S) b: r+ _7 t; r# x% y
- server.handleClient();" \) S2 G1 h: c; X% g8 y
- delay(1);
2 G4 W, q" Z! R1 h - }6 X- R. _3 `& y1 [
- String doGet(String url){! z/ i* _3 F0 J5 Q& U( {. Q4 T8 [+ V
- if ((WiFiMulti.run() == WL_CONNECTED)) {. S; R! R3 n5 c& X. {
- HTTPClient http;" {) p3 ^) J, c$ Y" z% U8 }( l5 N
- Serial.println("[HTTP] begin...");
3 z0 S0 y% Z5 K" z. q - if (url.startsWith("https")) {
$ P2 e; Z) k; F w - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
2 y) L- h& X! Q" K8 Q5 t$ S8 W - } else {1 K: s1 y9 I# z' Q" A! i
- http.begin(url);
. g. V7 `& @* a5 d) h ^ - }* G; o1 k) @4 W. \) P) `
- Serial.println("[HTTP] GET...");# P$ ?# E. U) h& U; v
- int httpCode = http.GET();
+ S) R; Y; l @( ?- w' p* V8 { - if (httpCode > 0) {
6 L, v; g. ^% ^4 `7 I - Serial.printf("[HTTP] code: %d\n", httpCode);3 [7 R4 i' f; U+ [0 j a4 L7 w
- if (httpCode == HTTP_CODE_OK) {
2 G/ E7 r9 F/ a. ]2 B9 q - String payload = http.getString();( W& v6 j+ B' U* B. A
- Serial.println(payload);
- h5 w& J6 Z4 K' B5 Q/ @ - Serial.print("\r\n");% J: K0 ~* d- F
- return payload;
, Z7 B8 l$ N. {" M7 l: O( Q - }. u3 v7 @7 I2 }+ _; G
- } else {
3 p% _4 K. ~; Y5 y G! F( g - Serial.printf("[HTTP] GET... failed, error: %s\n",5 t# W1 A0 b# O. M( w& Q
- http.errorToString(httpCode).c_str());7 h( J. U$ u) ?- V) ?* C s, C
- }
) Z: X7 `$ x+ D - http.end();3 O7 u. i3 Z, y Q
- return "";
& U6 I3 B* w: U) T4 T - }, o* u# E1 J/ S* ]5 `6 R( F) T
- }
1 h I- l. ` Y! N - void mainAction() {
% z& Q3 `+ \) P - // 发送请求
8 E" _: i2 F, R7 S) p - doGet("http://google.cn");
4 U& S5 M1 ]! R! T, Q - }# C0 g G" o, h. b! r! K1 l
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