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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)
& ?+ d6 g- \* w; }- #include <ESP8266HTTPClient.h>; M- e9 S' ]" o7 p6 T7 t( j
- #include <ESP8266WiFi.h>2 e3 A% g9 t: g% X$ |2 t
- #include <ESP8266WiFiMulti.h>
+ b9 M+ E/ Y* y6 [, N6 f5 D - #include <ESP8266WebServer.h>
, z6 Q& K/ J$ o7 Z - #include <arduino.h>' f5 }8 a/ v+ h6 ~# R
- ESP8266WiFiMulti WiFiMulti;7 t1 F' Y9 h+ Z2 j
- ESP8266WebServer server(80);
: F: L! j* M) @# C - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
" ~5 r3 [/ j3 O; ^ - ADC_MODE(ADC_VCC);
- ]5 A/ a' C1 ~( m( m - void setup() {+ y% v/ }, m- L9 f7 n0 O) |" ?
- Serial.begin(115200);
* Q/ ^6 A' b% B9 H: o+ A& h - Serial.print("\r\n\n");
, w! c9 S! P( c# l' J K - pinMode(2,OUTPUT);/ ?/ c/ Q7 ~& i+ k
- // WIFI$ [. P+ t, K! }( [8 ?
- WiFi.mode(WIFI_STA);% l1 k _2 l' Z- U) ?. J2 I8 R7 J
- WiFi.hostname("Sparkle");
2 b z) `8 D) A - WiFiMulti.addAP("wifi ssid", "wifi password");
$ s& R n% x- _+ a, { e ~4 D - int tryNum = 15;
. i9 N+ a$ L8 s1 V3 s/ \$ D. h/ d# Z - Serial.print("Connect WiFi");" g9 Y5 n. K/ ?, a# T/ ]. [3 \
- while (WiFiMulti.run() != WL_CONNECTED) {
5 o: C b, Y: R; X4 M6 j8 D9 d. F - digitalWrite(2,0);
4 }5 ~! m. B; s) W$ B; x - delay(200);
[! Y. S7 p1 t) a/ ~ - digitalWrite(2,1);
! |+ j3 L3 X: Y# u. w$ ^ - delay(300);, d+ c9 Z' V5 A8 d1 K: M. O) h
- Serial.print(".");
0 h' ^8 H; w9 M, ?6 F) ~7 }0 q - tryNum--;
- }1 w# c3 P+ C- t8 [ - if (tryNum == 0) {4 F# {& r1 l$ P, h6 U8 |7 A+ h
- // 1min
/ \# _, i6 C' V: K* C* D( X+ k2 X - // ESP.deepSleep(60e6);
0 H5 Q" N/ ^- T r) k% i3 L - ESP.deepSleep(0);4 ] X9 h4 H" K- [
- }
0 ~% s" T# w& o - }6 V' _9 s4 G% x; E1 I4 B& s
- Serial.print("\r\n");4 P( T0 u* D9 @- R" d/ M5 y# Q# O4 I8 K4 Y
- digitalWrite(2,1);8 s7 m3 I. u5 `6 l2 b
- Serial.print("IP address : ");
/ N8 C# H7 G5 y2 N - Serial.println(WiFi.localIP());, X6 T- N5 W4 |7 H# h
- server.on("/", HTTP_GET, [](){
3 x8 f7 `: c: s; h/ F - server.sendHeader("Connection", "close");% |- v3 @+ z+ R0 d
- server.send(200, "text/html", serverIndex);$ @; O6 z: s! n9 j
- });
$ E j" [+ d H0 i - server.on("/update", HTTP_POST, [](){
. M$ S e+ g+ `1 C! J" @7 U& Q* Z - server.sendHeader("Connection", "close");1 `& E% e& E. Q0 S
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
) W( M9 j8 w! Q - ESP.restart();
: \7 k' |. |/ K1 N' k - },[](){" B) Q7 ?6 t. m' V& k6 d5 O
- HTTPUpload& upload = server.upload();
, h4 \ {% i, z! Z! _; ?3 U - if(upload.status == UPLOAD_FILE_START){) o8 t5 c) f4 ^8 X" L: T
- Serial.setDebugOutput(true);9 }7 F$ L, s9 U3 q; y
- Serial.printf("Update: %s\n", upload.filename.c_str());9 k* E8 l4 O+ c% s- E6 t
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- |4 Q: N; v( \+ c - if(!Update.begin(maxSketchSpace)){6 }; c' }3 g5 h! w0 _" S
- Update.printError(Serial);
" q% H5 x- f2 j ~0 L, {$ C - }
) A4 ?; Q- v. u3 [ - } else if(upload.status == UPLOAD_FILE_WRITE){# I/ B0 u8 v5 F' H+ S5 V( {! }$ E
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
. `1 \$ b( g( S |/ F - Update.printError(Serial);
* }* P2 I3 F$ x - }/ v( n3 h& p3 W' m
- } else if(upload.status == UPLOAD_FILE_END){
9 y) I5 r# [3 I, R# Y& k - if(Update.end(true)){
7 ]% R6 u+ o# R9 U$ t, a - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
* _9 l, f5 h- _" `. i D7 i1 h - } else {
1 l" H2 }4 Q* u - Update.printError(Serial);
6 V9 S( ~1 }) O - }
0 M8 Y; M3 K, p, K! |1 J9 x - Serial.setDebugOutput(false);- l$ {5 p3 W5 o# F
- }
* H. f( Y0 f" z) g+ `/ ]; W) \& N - yield();
( q9 E2 x( w1 V4 N8 `: Q) J4 L - });
8 u; c6 O9 r* @3 o9 K6 C -
' a( ?* h; ~$ N# J' o - digitalWrite(2,0);
5 B P; |- w$ G$ v - mainAction();9 L8 ^& [0 @- v& r8 a& V5 s6 r
- if (digitalRead(0)){2 T2 L$ t# Q( c4 d; L( ^! ]8 C# y
- ESP.deepSleep(0); }# d7 c3 i5 C8 f7 b3 p- @( B n5 x
- } else {, a1 K. w8 Q' J1 w9 @
- server.begin();/ Y: b E8 s, m- L
- }& q# V t- E- g) R
- }
5 x; u7 L+ f& D1 y" Z - void loop() {0 k& Y8 ^5 \1 K a# _$ x5 n" s2 H4 p H
- server.handleClient();% O1 X( d% x8 l4 L
- delay(1);; @3 G5 y5 }( h! e$ Q; E* B0 G9 M0 d
- }0 q) l% t& o8 Z( d
- String doGet(String url){. Y6 Y2 j- K0 \$ i0 G$ e+ ^# ?
- if ((WiFiMulti.run() == WL_CONNECTED)) {
- {9 {. D5 ^# P8 z, x- c - HTTPClient http; H$ x8 V( X7 ?- U
- Serial.println("[HTTP] begin...");
0 E2 b# G, q+ y6 ~% O - if (url.startsWith("https")) {
% v3 a- J( m. l3 w/ W3 P - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
% K+ j* T X5 D' r F - } else {
, I( I& ^( o l) X - http.begin(url);
# O, C4 U: Q$ A2 V1 d% e; M& X - }
$ u+ i& \! f: j - Serial.println("[HTTP] GET...");
3 H: d& n5 D* p }( d# O - int httpCode = http.GET();9 I' y" a* ]+ t8 E q
- if (httpCode > 0) {+ Y. [6 @/ H( C
- Serial.printf("[HTTP] code: %d\n", httpCode);
) @: J# T+ i9 b/ {9 {9 G0 r' \ - if (httpCode == HTTP_CODE_OK) {1 h; o( p& F9 d
- String payload = http.getString();& D+ M& J) ], o& R# T
- Serial.println(payload);
' u, K( M8 Q5 w) W6 R2 _3 y0 k - Serial.print("\r\n");* z% z$ b& T s; Z, X! r. ?
- return payload;
( ~) M+ Q# |4 ]" t7 n% ^ - }" ?8 m$ t& U. _/ [9 ? Q# v. {. z
- } else {! j' e: A" f7 Q+ S+ g& d. a3 z
- Serial.printf("[HTTP] GET... failed, error: %s\n",# A2 [& e4 q( ^
- http.errorToString(httpCode).c_str());- U8 c8 m \) A5 d: Q7 \! R; H; V
- }+ L" X U; l7 p
- http.end();4 O' @) R7 f o# u- f* ?9 Q
- return "";8 J4 o# Q8 I$ q: C* f. L. C5 u
- }" ^; j1 H! j! c; A. f3 z- @$ M
- }
# p3 i; q2 T5 s( |7 l - void mainAction() {
8 n0 h" H: J4 f- Q% M' o1 ~; [+ e - // 发送请求
2 \- Y1 V+ w' N - doGet("http://google.cn");6 r1 N% [: w# c6 P5 O
- }: Q3 l: v) W1 `# z2 Y. l `
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