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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)6 ?6 g: \5 g( o: @+ Z' o
- #include <ESP8266HTTPClient.h>
: d! q' H/ _6 Y- S3 x - #include <ESP8266WiFi.h>) f5 \2 O0 j- S% c3 U' ^
- #include <ESP8266WiFiMulti.h>5 N8 @6 z' w# p( C
- #include <ESP8266WebServer.h>! v! G! _! x& ~' |$ P7 I
- #include <arduino.h>
1 s" y6 v& `! M) b. M - ESP8266WiFiMulti WiFiMulti;. O" Q, {5 ]1 u; ?8 n- N
- ESP8266WebServer server(80);# g2 Z& f, z4 M% E
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* s4 l# U" S* W# y" s, D) R+ q
- ADC_MODE(ADC_VCC);6 p' {8 M% i& ^% s3 A3 T9 X+ w
- void setup() {
1 H- |9 p% L& [# V( |! T - Serial.begin(115200);
2 G2 N/ u" c i3 L* Q9 M. x; d - Serial.print("\r\n\n"); }& k. O/ X4 a6 }3 V+ y O4 B
- pinMode(2,OUTPUT);% r5 t1 r( ]# f; X( A
- // WIFI
" c7 F( i; ]1 D. _5 T; Y4 F! Q - WiFi.mode(WIFI_STA);4 I7 r ~" {3 p4 |" T) H" l. O
- WiFi.hostname("Sparkle");
: p5 D8 }5 z$ \7 }: n8 A' H - WiFiMulti.addAP("wifi ssid", "wifi password");
' V4 E6 K& p h8 q( O5 H - int tryNum = 15;, w$ }: {: Q1 a( U4 r
- Serial.print("Connect WiFi");2 r* U" Q6 i- t6 u& W a8 H
- while (WiFiMulti.run() != WL_CONNECTED) { u+ y' ^8 k! w8 q! Q2 B
- digitalWrite(2,0);
2 G6 q$ Q8 X- a& F, P+ P - delay(200);3 p$ @* y' N0 f- Y! F
- digitalWrite(2,1);5 a; f) M& {/ r4 c5 W, x
- delay(300); W8 ^1 e+ z' n: s* I6 O
- Serial.print(".");
7 H2 c( ]+ g( x3 w) n! I( n5 l6 O$ Y - tryNum--;
& C# `1 A6 y H: Z6 { - if (tryNum == 0) {
3 @/ \. t; x. @ i - // 1min
* t0 [& x' t6 d' N - // ESP.deepSleep(60e6);
8 x- H6 @* O7 n1 Q - ESP.deepSleep(0);
& ]2 S% H7 v, Z" \/ B - }* v1 L! v2 E( j
- }
# o) ^9 _! A- f# {: | - Serial.print("\r\n");
$ J0 s' s ?; W* p9 Y - digitalWrite(2,1);8 ~3 p) F) r6 Z0 j. ?$ u2 v) M$ Q
- Serial.print("IP address : ");
" R% f5 q, S$ e0 s - Serial.println(WiFi.localIP());& \; X6 j2 q/ i: X5 O
- server.on("/", HTTP_GET, [](){: r G: z1 y" _. A% C# L
- server.sendHeader("Connection", "close");( q# G7 F/ S y4 L E
- server.send(200, "text/html", serverIndex);
3 x% S7 W$ T: o4 B, X* I" ]! a - });6 K4 C* I: G/ D: @- V
- server.on("/update", HTTP_POST, [](){
4 f1 G- G" e8 g9 ~4 z. I - server.sendHeader("Connection", "close");
4 f7 o' h& U8 I6 P) ^ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
/ ?+ p4 K" _( z2 T- R1 R! I - ESP.restart();
4 k* f3 [- L# d h3 u' D8 z - },[](){; z% C# U9 }+ n8 H& m
- HTTPUpload& upload = server.upload();
& }1 r: Q& ^; [' U- ~- |) ]0 { n& f - if(upload.status == UPLOAD_FILE_START){" ~2 f/ b1 a+ z1 H; {1 f
- Serial.setDebugOutput(true);
5 [; e1 N5 [/ ?+ e1 j c - Serial.printf("Update: %s\n", upload.filename.c_str());( D# v( j2 \, R& P* W9 z6 ]
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
. \# b% a; g: z0 l# e* d1 q - if(!Update.begin(maxSketchSpace)){+ A4 X K+ n# o/ B' M0 `3 \) s/ l
- Update.printError(Serial);2 e3 c# X, h- g0 k0 T
- }
% `" Z# B/ ], A - } else if(upload.status == UPLOAD_FILE_WRITE){! Y% w' ?" H, u$ Q5 D: K5 x
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 F; M4 z2 c2 y! x) W& I& U - Update.printError(Serial);; O0 o! O# n$ N5 [% L- f4 U
- }
8 o! U# u$ E# W5 _4 ]& a+ P - } else if(upload.status == UPLOAD_FILE_END){, S) f8 U8 x7 Z5 Y
- if(Update.end(true)){
$ @# q; @9 i1 g8 g* n - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
2 @7 X1 L" c; A! t3 X/ Y - } else {
& M b. L9 c7 x/ r. f/ r( w5 R - Update.printError(Serial);6 h9 h+ ]$ h% g0 Q1 H: i; D! P
- }
# l% k. ~4 m0 w- `- x8 O) V* k - Serial.setDebugOutput(false);
2 O y' s; y, V/ t - }
! Q, ~% e) K6 a, o, N: ]. b - yield();7 o+ K2 p, X! m! S1 s
- });& }5 l( Y& G% C1 B
-
: [6 n8 c8 m3 ]7 N - digitalWrite(2,0);) q# M; |. A5 W% \# r
- mainAction();6 e" x5 v0 _# _3 b: x
- if (digitalRead(0)){- m! q' s- J( b; h& ]
- ESP.deepSleep(0);0 u0 n+ Z9 q+ @+ Q! F4 S: j! p
- } else {
& c2 P1 L1 r. U( \; J# ~ - server.begin();8 V$ V, c! ^' a- ?! L
- }
. L1 J2 ^3 t, R! z - }
! ^. I) m* s5 H- k! y4 N - void loop() {
+ g3 _# U' z/ p; B5 K2 @9 G - server.handleClient();; n) o6 i% {2 `; f2 ]- g
- delay(1);* ~& w" e- [0 }+ f' J5 ?/ L
- }
3 `. d/ i2 E; @( i, Q& b* C - String doGet(String url){ x. n" G: t+ M) y I# d4 E* o
- if ((WiFiMulti.run() == WL_CONNECTED)) {! [' J3 A% g* o' h
- HTTPClient http;
1 h5 c7 }: U' q* \5 y {# B - Serial.println("[HTTP] begin...");( M. N K$ @5 }8 W, ]+ N3 v
- if (url.startsWith("https")) {' J ?' Y |0 K5 v
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
9 [& [( b$ |: ~5 ?2 ` - } else {
( @0 Z1 @/ f7 ]6 U3 e - http.begin(url);
h/ V2 D5 n. z2 P) _7 ~' n - }
# u U6 ^. g+ \ - Serial.println("[HTTP] GET...");
0 T1 _! g- N( S - int httpCode = http.GET();
7 t3 Z) }! N. J' Q2 ? - if (httpCode > 0) {
) V( R( Y: I. q; _, l. B* m0 X% s% S - Serial.printf("[HTTP] code: %d\n", httpCode);
7 ^. H | ~# w7 v - if (httpCode == HTTP_CODE_OK) {
( c6 i0 A/ r. W/ B - String payload = http.getString();
/ E# X. ~6 f( m; X: v8 a - Serial.println(payload);, g6 P( a3 g" M" |- c( [( J
- Serial.print("\r\n");& A$ u/ q7 X- F8 F+ E2 M% ]# j
- return payload;
8 n% N7 Q/ n/ _6 r8 S+ o - }7 |" }$ ?! |0 L& g( o6 l
- } else {
$ j& J+ [0 G$ ^% ~& `3 B: ?" t - Serial.printf("[HTTP] GET... failed, error: %s\n",
2 k9 f- J' r. X% s0 K - http.errorToString(httpCode).c_str());
& }& @3 @/ r5 H3 ?" j3 r - }
) D' S6 |1 }) G4 i5 x/ H% F4 \ - http.end();- ~: T& c1 @/ }$ j
- return "";
, u2 [- e+ C* n+ O" d - }
; E9 t2 ^! S) `$ ~ q - }" J) z1 l4 Q: A% g
- void mainAction() {
2 s* J6 b/ j y' x9 k' t. ]3 ] - // 发送请求
; ~7 U! v g( F; x: O* P - doGet("http://google.cn");, a! {3 F0 e+ z* I
- }
7 ~. g& q0 ~. a9 h% a
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