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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)
. C, ~5 F, [' v5 g* x5 D9 x; Y- #include <ESP8266HTTPClient.h>
; \: t+ F! Y' g) R/ }/ s0 B3 m - #include <ESP8266WiFi.h>
: E# @' t* E5 O( `8 J - #include <ESP8266WiFiMulti.h>
& B8 X9 x% e- `) {" m5 M - #include <ESP8266WebServer.h>
, N/ s& \4 W, Z - #include <arduino.h>
) h+ q: V" d# s: s# P" `+ ` - ESP8266WiFiMulti WiFiMulti;
# Y* f$ d& O( P) G - ESP8266WebServer server(80);
3 X- a# x9 j. B$ v3 j - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ e/ D3 r# m6 |- Z0 Q( I6 R6 p
- ADC_MODE(ADC_VCC);
4 h' h8 b4 q4 Y. a7 z$ F - void setup() {
0 G3 a& r7 Q% ?& a/ s - Serial.begin(115200);+ a8 I1 }7 _1 Z! j B) x9 M
- Serial.print("\r\n\n");/ Q- W( h) i: i* G
- pinMode(2,OUTPUT);
- U/ b3 q* E1 A) q* j# X - // WIFI6 h" T" S- I6 t
- WiFi.mode(WIFI_STA);
; }0 |( n- l2 C2 d" C( J - WiFi.hostname("Sparkle"); K0 c; k) Y) ^; R2 i9 c5 @4 D+ ~
- WiFiMulti.addAP("wifi ssid", "wifi password");
' n* g( _ }; l' v$ i& b - int tryNum = 15;9 s/ o! S7 K9 R+ n! f
- Serial.print("Connect WiFi");" ?3 T# U/ ^! W* X
- while (WiFiMulti.run() != WL_CONNECTED) { x* `6 a, ^- r
- digitalWrite(2,0);
' [8 @) j4 y, ^ - delay(200);
; x0 t% `; W8 ] - digitalWrite(2,1);
d: P6 i. K3 k0 F1 G, m2 ~$ C! Y - delay(300);9 c" j$ N' W# }. }* h: t: Q
- Serial.print(".");) \) z1 G8 D- T
- tryNum--;* B6 ~8 z2 Q* G& \1 u2 U( U
- if (tryNum == 0) {: Z# Z2 `% d, j1 L% K) d* b$ P
- // 1min! D9 A- a Z0 f, X0 Z
- // ESP.deepSleep(60e6);
2 I" H8 J) p: v( C! ~ - ESP.deepSleep(0);$ ]6 {3 f6 Z! q+ H: j7 `5 a1 o
- }/ M% [: P- v i1 V6 m# A1 d
- }
9 q0 z/ z% m, N1 t7 I+ H4 J. v - Serial.print("\r\n");
& Z/ _+ o9 g2 O - digitalWrite(2,1);
# ~% H% c; x7 d$ H, C9 s0 X - Serial.print("IP address : ");
J, ]2 _0 D2 f5 _ - Serial.println(WiFi.localIP());
& b9 L/ q& E0 U( t5 q - server.on("/", HTTP_GET, [](){
$ }4 h" ?' G( m, L - server.sendHeader("Connection", "close");) y! P9 Y+ x; I
- server.send(200, "text/html", serverIndex);
; x4 X6 ` U: o - });
( r( i( T. \8 z, } - server.on("/update", HTTP_POST, [](){+ N: n1 @ K( f2 t0 `1 v" N3 b/ {
- server.sendHeader("Connection", "close");! q0 j) p) Z4 \+ s
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
" E- D) e$ t; s5 T( V) [1 E - ESP.restart();( \ ^; @1 a1 s G! H
- },[](){4 M" u: b3 c( j3 S6 T6 `
- HTTPUpload& upload = server.upload();* S9 d1 C7 X2 Z. Q, T, C
- if(upload.status == UPLOAD_FILE_START){
. [( w3 Y1 B' `1 ` - Serial.setDebugOutput(true);, E. G2 v/ e) d9 O9 h0 r5 l
- Serial.printf("Update: %s\n", upload.filename.c_str());1 c* ?5 [% V8 i* W
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;5 B1 S9 h9 s! ~; p2 E- Z V
- if(!Update.begin(maxSketchSpace)){
- x0 V5 t1 b: {5 f& U - Update.printError(Serial);" d5 X0 R" M% ]: @, Z. d- S
- }* V! c/ }- W9 p
- } else if(upload.status == UPLOAD_FILE_WRITE){
+ J* ^9 j, ~+ P& h1 v! I - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 V2 {/ h# y- v% ^6 x
- Update.printError(Serial);: E+ E. i+ q% ^: q3 m9 }3 e
- }9 p9 Z1 I" y4 S
- } else if(upload.status == UPLOAD_FILE_END){" t! {2 `) m9 b
- if(Update.end(true)){
; e5 Y N7 Y* j" Q5 L) ~& C - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);3 ?0 _( m" ? B; ^8 v; U
- } else {7 U; `0 O G7 y" P; z" T
- Update.printError(Serial);4 T _% a( r9 z9 g/ X* b- K8 }
- }
3 `5 E# [6 h/ ~ - Serial.setDebugOutput(false);: X( S6 H" g; F+ O
- }
% Z9 ?# t V$ T7 f3 [# T - yield();
/ V; L+ K; r; o7 H - });* F) R8 u+ }+ d3 [
- . z; O# G8 P8 _- C, }$ f; n
- digitalWrite(2,0);
4 T& i z4 k; I/ X, R - mainAction();' E, e! J/ r/ R6 ]: f5 ^/ ~
- if (digitalRead(0)){/ h! i, o; z4 R$ b8 j$ O& C# X2 ]8 B
- ESP.deepSleep(0);
. b) f, B1 `) n/ P \7 [ H8 H - } else {
* s% t+ c9 \7 M% p3 k- j - server.begin();
1 M6 {- O! X2 E* J - }
9 D+ l2 ]) `6 \6 v( h - }
4 y2 R6 C* i/ r/ e: N0 Z - void loop() {
' j7 U9 h3 d! X) B2 s3 K - server.handleClient();
( }8 Y/ m! l* U1 ?0 ^8 X1 c; B4 Z - delay(1);) k+ \9 C/ W w5 E6 f
- }
' R' o8 \+ s+ j4 h) K f - String doGet(String url){
# r, ~0 q6 k7 E1 e: S+ {: L - if ((WiFiMulti.run() == WL_CONNECTED)) {
1 V8 \; ?8 c1 M# R4 |) T - HTTPClient http;
- b2 y& T2 _* q# @. M5 v+ A3 \9 u - Serial.println("[HTTP] begin...");
% R" |4 x1 {7 l* l - if (url.startsWith("https")) {
* t$ ^4 A4 a$ l" i, z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
$ R% O& }- p" D- j2 n5 \" Q - } else {
. |6 [3 f3 s3 p7 o2 s - http.begin(url);2 |5 F! {" |4 G" y1 }: V$ L. o) L
- }0 ?* {6 K4 T0 N
- Serial.println("[HTTP] GET...");
; ~- G+ [+ _5 d( P. g - int httpCode = http.GET();
^5 h [3 F7 z$ Z9 @. | - if (httpCode > 0) {
2 H Q2 B! i5 t i( q - Serial.printf("[HTTP] code: %d\n", httpCode);# M0 D3 T v* e$ [7 Q
- if (httpCode == HTTP_CODE_OK) {8 [4 O- V) A2 h
- String payload = http.getString();
* T4 f3 F o4 d! I3 s - Serial.println(payload);
) U4 K; z+ @. s2 O& J1 p - Serial.print("\r\n");
/ ? S8 O" ~) T* ` - return payload;! b; ~4 [0 g( b
- }
6 e. X7 b6 N. _. |: Y& ]$ X - } else {
$ ?! Q2 Z, U. t - Serial.printf("[HTTP] GET... failed, error: %s\n",+ w; y' o. s( T& R3 h
- http.errorToString(httpCode).c_str());
/ j( a' f1 Z) |# |7 p+ c - }- |& B5 c8 {* [ E" O
- http.end();
) h9 \% [, L' q# g+ \% q- ^ - return "";4 o5 T5 J c. j
- }
- {' H$ i6 w' v* ]" T" q2 W+ d - }1 i5 E$ q6 _8 V& T% s9 u
- void mainAction() {
( R- w& ~+ B2 y* [ - // 发送请求
3 i, c& q6 e k, J# m: d2 u - doGet("http://google.cn");! s6 ~9 u& n1 ]6 ]
- }
0 v' d+ _" `8 [! I* P% Z: n# i, q
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