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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)" z9 S& p/ j. v6 y$ b" ~2 s
- #include <ESP8266HTTPClient.h>$ ^( t9 P' C( K0 g/ j- |
- #include <ESP8266WiFi.h>7 a+ k( R% R* K; ~" f. P* c
- #include <ESP8266WiFiMulti.h>
; S) Q+ E& f1 s0 [) Q - #include <ESP8266WebServer.h>5 B- z! S: H3 O* z
- #include <arduino.h>) x4 q3 h+ M2 T7 T9 A
- ESP8266WiFiMulti WiFiMulti;
' T6 T! ` ]6 H. b- P/ k - ESP8266WebServer server(80);6 X6 h; R3 E1 Q) y' o* F
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! _6 |# C) ~3 p' ~4 |$ k - ADC_MODE(ADC_VCC);0 E- V6 d( H; _1 W2 O
- void setup() {
3 E8 x0 a' g. t/ U) r - Serial.begin(115200);
# a# z) j6 R$ |& a - Serial.print("\r\n\n");
" h: V) k$ o! ?2 \& u - pinMode(2,OUTPUT);
v- U! Q3 h1 {2 \4 Z' z - // WIFI- t2 G# h1 Q0 m" f: n* _
- WiFi.mode(WIFI_STA);+ s' f9 S/ F' o T- `3 Y
- WiFi.hostname("Sparkle");
8 c) i l, Y! U - WiFiMulti.addAP("wifi ssid", "wifi password");* K: q7 k2 z3 A; r6 ]: z
- int tryNum = 15;- C+ e0 c- L2 d3 o" m/ P8 @/ g
- Serial.print("Connect WiFi");- N# o# U9 g: u' ~! E
- while (WiFiMulti.run() != WL_CONNECTED) {0 ~ W* v! U' U+ ]8 ]7 O
- digitalWrite(2,0);* A! _/ u8 A2 ~1 G5 R- L
- delay(200);
% A' y" U! G7 Z( K* V: h( v. e - digitalWrite(2,1);
) l6 Y6 g4 R6 T, ^: P$ D M; d - delay(300);: _# m( ?( q" l! X X2 n' H# m2 Y
- Serial.print(".");
6 |6 a+ r0 v+ @( S0 { - tryNum--;
; R! {3 k- Q- H' P% k - if (tryNum == 0) {
) _$ C4 ~3 a+ Y" w - // 1min2 p% r$ M2 V _. S
- // ESP.deepSleep(60e6);" Y U$ T7 M% `& u+ x2 P2 Z7 n
- ESP.deepSleep(0);
9 l/ ~8 J+ z0 ?8 d% n% W# d3 w! q4 q0 J - }3 Y' u" T* Z8 Z2 v- g
- }
e0 ~3 ], q2 @ - Serial.print("\r\n");6 N# @- v8 h! b' \
- digitalWrite(2,1);9 h) {, ] b5 F+ E" h2 @/ @
- Serial.print("IP address : ");$ `! S: h8 U% _6 j
- Serial.println(WiFi.localIP());0 n+ F" f! ?) G! f) i
- server.on("/", HTTP_GET, [](){: r! W s; n4 n2 G
- server.sendHeader("Connection", "close");
2 u: O8 u/ s. ]+ q$ E* _& ~ - server.send(200, "text/html", serverIndex);9 G2 m5 Y* h: r& u% {
- });( o! l! x2 W& I! w4 `* s
- server.on("/update", HTTP_POST, [](){$ V$ i' _% S4 q9 d* f2 ?' s5 {
- server.sendHeader("Connection", "close");
9 L& n0 O9 q+ H: G4 o+ f - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
0 j2 `" y; E7 Z5 }0 K" g) S3 C& a3 | - ESP.restart();
* @' I; g$ s' y+ B2 @+ N3 i T) I9 Z - },[](){2 @7 w* K: w7 F: |$ {4 B" F
- HTTPUpload& upload = server.upload();
; b+ ?' Y% X* F4 _! k - if(upload.status == UPLOAD_FILE_START){! ]2 |! f. u" [
- Serial.setDebugOutput(true);4 ^0 p9 G. ]3 j! w
- Serial.printf("Update: %s\n", upload.filename.c_str());
8 z+ l% W( T& q I8 h: ~; J- o" u - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* J( [$ n7 N+ {8 ]" H- |- u1 L - if(!Update.begin(maxSketchSpace)){" b$ C: Q% h. V4 r7 c% g
- Update.printError(Serial);
8 K; c+ \- ~# R/ X7 i0 x - }
6 V. Y" N) ?+ s' C; {$ \5 O2 }# T% {2 ? - } else if(upload.status == UPLOAD_FILE_WRITE){
* p1 g! b: X H! ] k, W# | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){% x& _ _5 r; s0 |2 x5 V( W& ^1 Y% ]
- Update.printError(Serial);2 ]0 e' b5 v' O6 k1 O+ d$ u$ ?
- }- \1 a( r1 \: n0 K8 x8 f
- } else if(upload.status == UPLOAD_FILE_END){- M8 Q" P- Y+ T' j
- if(Update.end(true)){
) K* D/ ]- v y - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);3 k3 J2 u3 J; i- L- E# ?
- } else {* I9 v& |, G# [1 Y5 ]5 h" D" e W- F
- Update.printError(Serial);* t/ m5 d+ `! W0 `
- }
- E q4 s8 h* m+ M2 J5 b& E - Serial.setDebugOutput(false);# i! a4 H3 _, ^9 S2 l
- }3 V9 K: q0 E7 S
- yield();
: j \( `- \% i - });
' u1 L! r k0 ? - % k7 Y) f0 r) v# j
- digitalWrite(2,0);
) d9 M) a1 T$ C/ T; t - mainAction();! T* ^4 T2 R2 i
- if (digitalRead(0)){) w+ T$ k0 x4 }; w. C0 F: q
- ESP.deepSleep(0);
8 Y! e% }! M; `8 p F& v - } else {) m( v7 `* p8 j( i2 {8 ~& E
- server.begin();
1 ^! i; ~# v+ g+ x - }( d4 G! n! C0 Q: w7 d
- }
: [9 e/ G" M' w9 G - void loop() {
) f6 w/ j5 X3 S9 y2 F7 D H - server.handleClient();! |' @7 r, r& B n! ?
- delay(1);& u' B8 a. H# o
- }
3 t) A! K/ z! r* D - String doGet(String url){
# l; Z% U9 U1 A. k" m) k/ k - if ((WiFiMulti.run() == WL_CONNECTED)) {
8 o$ u+ z X: V- W( I7 `8 K - HTTPClient http;
. Y$ N4 v! n4 ~. L* z" z - Serial.println("[HTTP] begin...");3 e- Y0 {6 {8 [5 T" q4 B. n
- if (url.startsWith("https")) {. ]6 K7 d& o: k2 C' @ f
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");6 ^$ t4 p5 v s- T6 Q* e( E7 \
- } else {5 }5 P& ?1 p$ r7 W- |6 b
- http.begin(url);
Q) j; f% Q A9 K* J* Z3 I - }
, B/ A: q/ X, R, z" D4 i7 F - Serial.println("[HTTP] GET...");4 T2 M/ M) h5 q2 \. t
- int httpCode = http.GET();
( J* i l: ]) }9 [ - if (httpCode > 0) {
% \5 i% W- G" @2 p3 G8 } - Serial.printf("[HTTP] code: %d\n", httpCode);. o( t# i4 y& v4 q# G6 r
- if (httpCode == HTTP_CODE_OK) {
; y7 ~% L- k% t$ W - String payload = http.getString();
6 h& H' Y/ }- ^0 L3 l- P - Serial.println(payload);% N" [; H0 X' T% a4 ^0 n+ N) F
- Serial.print("\r\n");4 N0 i% j# Y' Q: m
- return payload;
% v; c- `( [+ a& \6 O5 w( H - }+ H+ b/ p& ]# M
- } else {
" U9 z) q/ q* U9 S. K& g S# n' t* ? - Serial.printf("[HTTP] GET... failed, error: %s\n",4 w: } B; L0 z( K
- http.errorToString(httpCode).c_str());
0 E# M% K: k( p. e! D) G3 D - }3 q" _3 @0 R5 G9 {# d
- http.end();
! J& C5 J# G m$ B' j$ d" E( k. Q @$ S - return "";
" f7 @# W8 i) B( d" H1 Q - }
' _" e) H5 X# y1 u$ [' X+ a& g - }
# [' J7 \5 g; B& U) g4 z - void mainAction() {
# N8 D) o9 \4 ^# Q- L) E - // 发送请求
) r0 p) b& z4 e2 u - doGet("http://google.cn"); A! B! \& A5 h1 u: I
- }7 k6 ?4 I# g( ^% `$ q
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