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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)/ r1 c7 F$ C; {; k: e5 F T
- #include <ESP8266HTTPClient.h>
' L7 ] V/ `7 F5 O. T9 U6 z# m; l - #include <ESP8266WiFi.h>; f5 `8 I( j8 d& w6 F
- #include <ESP8266WiFiMulti.h>
1 a) H: [9 g. j1 G - #include <ESP8266WebServer.h>
0 ` |7 _8 l& s: E. [/ [ - #include <arduino.h>) G" Z: s) {; `: m
- ESP8266WiFiMulti WiFiMulti;
& E7 K4 q; c3 z0 X; `# g1 n - ESP8266WebServer server(80);8 G/ I. h. `% j! _% ~2 [7 z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";' X9 a& \" h h) K5 j1 ^
- ADC_MODE(ADC_VCC);( }" f0 S9 m# O! L! \( K
- void setup() {
8 `1 q5 y. r8 a' ]5 H - Serial.begin(115200);
8 O" M' Y+ b3 p - Serial.print("\r\n\n");5 n" [4 n3 h" ]1 y2 t9 u$ z
- pinMode(2,OUTPUT);
" w) [3 C a9 }& e/ z0 C7 [ - // WIFI' J5 G" e/ J; a. d8 L/ ~
- WiFi.mode(WIFI_STA);% f0 B* t% Y) ^' ^$ X
- WiFi.hostname("Sparkle");0 s* m0 E) R7 c/ G Z
- WiFiMulti.addAP("wifi ssid", "wifi password");
$ d+ S/ P8 X- |0 R3 j - int tryNum = 15;
0 x( |7 i; t( N' } - Serial.print("Connect WiFi");7 @; a% o( p; N& ]6 ]6 Y( L' F
- while (WiFiMulti.run() != WL_CONNECTED) {
. P9 N/ |: E' Q+ N# a - digitalWrite(2,0);
' E6 T# X" J4 ]- v$ t* s* p - delay(200);
9 n& t3 O9 `! R# I( W: W6 L - digitalWrite(2,1);
# T5 i8 h L5 B- _- j' ]- t - delay(300);
8 F, B. A8 |$ n6 F) e. J - Serial.print(".");
% C6 y$ L" ]' x P - tryNum--;
" o( o. B2 l7 s* ~1 S1 d& T; t: ] - if (tryNum == 0) {& H( t. W I# x
- // 1min
' m+ ]3 L' ^; o2 D( a& K - // ESP.deepSleep(60e6);
4 l9 q' f% [- o/ D" H& w - ESP.deepSleep(0);! z% F+ I2 D& S% E; Z
- }
( |$ W" I' v: l4 n. N6 U - }8 x% n! H4 o4 `: C2 y2 j
- Serial.print("\r\n");6 W7 B; ~& ?7 M
- digitalWrite(2,1);& O" ?; n2 o. }$ U, L
- Serial.print("IP address : ");( C1 |7 ]4 T% o; D1 Z/ F
- Serial.println(WiFi.localIP());
% b, B. m8 _7 B8 L& Y+ d - server.on("/", HTTP_GET, [](){
. G" r5 Y" j8 g/ g+ z/ d - server.sendHeader("Connection", "close");2 Z4 T! ?- I7 j" h9 K+ z
- server.send(200, "text/html", serverIndex);$ N' m2 `$ F+ b( ]
- });8 J% r1 H# v; i }' j3 x% A0 x3 a
- server.on("/update", HTTP_POST, [](){
- z, e1 K1 b& a3 \, n6 x - server.sendHeader("Connection", "close");8 x( f1 A3 x' F$ k2 ~
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");2 n2 R( Y( o% g) D% K7 Q$ [+ ^: N" B
- ESP.restart();
+ D: m' C0 { v6 u3 `, d - },[](){# l( U2 ~ A) w% _4 c' I4 w+ I
- HTTPUpload& upload = server.upload();& t. X0 R, j% K5 i& {' O
- if(upload.status == UPLOAD_FILE_START){% d6 _: W( N2 y" R9 H
- Serial.setDebugOutput(true);
% y- @8 l4 `6 B F" g) }/ ~: V - Serial.printf("Update: %s\n", upload.filename.c_str());7 }8 e! d! y4 y. b
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
3 O2 p m; J; ^) {. q# `0 g g* j - if(!Update.begin(maxSketchSpace)){7 x, T" o" L- G4 D
- Update.printError(Serial);
" @9 j$ Q6 Y" [* I3 |" K( i$ G1 C - }' C7 E. ^7 j& F1 p4 ^' r
- } else if(upload.status == UPLOAD_FILE_WRITE){
9 w {" z8 Z2 V# C& w0 M - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% l* ~ ^0 ?1 p) O2 j( ? - Update.printError(Serial);
% T( g1 U/ b- u. g, |6 k - }8 |! z& ?/ s; l$ n; r
- } else if(upload.status == UPLOAD_FILE_END){' z f% S9 T- q2 n; s$ Y( h& D) K
- if(Update.end(true)){( V, h k2 e$ o: ], n
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
0 G* X$ g' j7 B3 \2 e+ ~" t' ] - } else {
/ P/ v" P2 o! {0 U - Update.printError(Serial);/ _ [& G' E0 R+ w; k0 e5 R
- }
# f3 Z6 N) L0 w: u+ E8 C - Serial.setDebugOutput(false);2 m9 `7 t+ h! H6 i2 t1 E, `" E0 T0 l
- }
- Z0 a( {" w) c% G% C8 w - yield();
0 ?& i) l" M9 l! m - });5 a* ^" w8 o7 [! A
- J1 b w% V; L( R
- digitalWrite(2,0);/ P- ~4 ~- i3 A! s! V: u, s
- mainAction();4 f$ x( N9 v6 k/ O
- if (digitalRead(0)){9 l. H4 g% m4 b' d: O! b) j3 X1 R
- ESP.deepSleep(0);
3 f/ C6 O5 W* C; Z- T - } else {. b* a, Z; {- V" ~8 K
- server.begin();
5 ]6 T+ x7 F: F) k% k/ R. [ - }
0 t& h% a1 ]0 Z$ L. k+ G& J8 U& V - }# O- `$ o3 T$ h# J! Z
- void loop() {4 \- b! G. u; h6 t, l. `
- server.handleClient();
9 O: `; M C8 y3 y - delay(1);+ D' o: _$ y" p0 {* Q) j3 U
- }4 l/ V! v1 Y+ t3 B% _1 H% S2 E! |
- String doGet(String url){ N( K. u6 S, Y3 i' M- Y. [# P
- if ((WiFiMulti.run() == WL_CONNECTED)) {1 t0 H6 Q) w3 N" |, ~" ? v
- HTTPClient http;
! I" ~5 D1 G0 }- g( q3 B% Z. f+ l, J - Serial.println("[HTTP] begin...");! D5 c" L0 \6 x2 _9 n5 u8 ~8 f0 K
- if (url.startsWith("https")) {# |4 ?! v( r" \4 S6 v* k
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
9 P2 E5 _8 ?: X6 v3 ^ - } else {* t7 ?( }/ G6 e. U$ w% Y
- http.begin(url);
- W/ q+ J5 M5 Y2 O) k# s - }
: |4 d% ]* `: t! Z" Z! o* d- s7 \& \ - Serial.println("[HTTP] GET...");6 Y7 u1 _8 M6 b0 e/ m, g5 D. x
- int httpCode = http.GET();
+ S; M$ H- M5 Q" h - if (httpCode > 0) {' v. q5 L& a' [$ h8 o( u
- Serial.printf("[HTTP] code: %d\n", httpCode);
3 Y( j* M) t1 e# W1 L - if (httpCode == HTTP_CODE_OK) {$ Q* [, r" N+ ?3 i4 Z( b' Z) I
- String payload = http.getString();
% j1 z& B8 f* h! {, @- G8 | - Serial.println(payload);
$ w6 ?& m5 @+ F. R$ T: a+ | - Serial.print("\r\n");8 ~, I. w( p1 d: E
- return payload;9 V& G# N5 m& M; n# H8 Q) D( d
- }. Z; A; o4 A( K% @5 F' ^2 N
- } else {
/ U0 M" E3 l7 r3 m - Serial.printf("[HTTP] GET... failed, error: %s\n",
& g% `7 x" h- t. v& n0 y - http.errorToString(httpCode).c_str());
' J1 A; S4 K$ v7 ]5 R" \ - } q+ a9 Z3 l6 w3 D% C4 S! d
- http.end();9 S/ w; T$ Q& m" I; E
- return "";, I5 Q) x2 |/ m. V0 X
- }; D5 t9 L' s C) O3 h& n9 f/ g) }
- }8 _' a1 [& t) Z3 B& z- Y+ Y
- void mainAction() {
% h. @7 p6 T$ e/ M- F - // 发送请求4 x& }+ \3 x$ E: x8 ?- S6 |* `
- doGet("http://google.cn");# X! v% h+ ^3 l
- }3 ^- ]# }( g* y1 G/ D- ^# X
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