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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)
" z( R: a) K4 Z5 p9 z% E6 L- #include <ESP8266HTTPClient.h>
5 I) i" l0 y. ]0 ~ - #include <ESP8266WiFi.h>2 d9 _5 N) l4 v
- #include <ESP8266WiFiMulti.h>6 ]; Z+ w9 b, ~1 Y
- #include <ESP8266WebServer.h>
& V& M, u) o: `. i+ }) m - #include <arduino.h>' W7 z8 V' u( g1 \
- ESP8266WiFiMulti WiFiMulti;4 n& O8 F. o' A$ F! Z
- ESP8266WebServer server(80);
4 A* t- f6 e5 t" I2 t! E - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ N% @1 G9 K9 v; n# ^
- ADC_MODE(ADC_VCC);7 h5 F0 v) D" T2 Q4 l9 g8 i
- void setup() {
% F$ S, V% C7 f4 y* U( _ - Serial.begin(115200);5 W' z+ Q* [2 h; i& R
- Serial.print("\r\n\n");, {3 U) a$ B7 {6 C7 f c- E& R( a
- pinMode(2,OUTPUT);
- |( E6 O, \ y7 W, g - // WIFI! ^( f8 w) I3 G/ c
- WiFi.mode(WIFI_STA);
" C+ I1 N: m/ q1 q$ N - WiFi.hostname("Sparkle");
X$ g7 B7 G; |# x& I& u: @- n: ` - WiFiMulti.addAP("wifi ssid", "wifi password");
# D ~$ q/ h( I0 m B, Q2 p! P - int tryNum = 15;
3 p' ^, {7 ^9 B& {3 |! ]( e( C - Serial.print("Connect WiFi");2 D' ^, z+ r/ j) J" a" w2 [ D/ ?0 @
- while (WiFiMulti.run() != WL_CONNECTED) {( v1 {, v# X H; E* o% o6 @
- digitalWrite(2,0);7 c+ |. |* R6 m5 N
- delay(200);/ x8 R' S2 _( {8 @4 s
- digitalWrite(2,1);$ S3 P5 n/ v! Q6 @0 a+ i
- delay(300);
$ K, V6 i/ y! ?9 T0 C6 l) q+ U - Serial.print(".");
2 _ {6 j: L6 _( O/ {5 Z# N1 } - tryNum--;
. V v" H5 i3 D9 h: p! @/ m* ^ - if (tryNum == 0) {9 B! R& _; s2 @7 ?% ?
- // 1min
7 Q8 z4 p1 l9 k - // ESP.deepSleep(60e6);8 X8 f9 X! j) G1 j' D
- ESP.deepSleep(0);
+ r O' e; R, L - }- A( Y) |/ T6 F# @1 X# e
- }
% C. x( f! [' g. Z2 u0 F - Serial.print("\r\n");+ c b: w* f# B9 u5 `3 p" p
- digitalWrite(2,1);. s9 G5 x! x3 A1 W/ i; P1 \
- Serial.print("IP address : ");4 h# e7 v, _8 S) I
- Serial.println(WiFi.localIP());: k/ H9 P" r0 X: u( r3 l( F
- server.on("/", HTTP_GET, [](){
; z) k, t D6 S+ }1 G - server.sendHeader("Connection", "close"); i3 y# P4 z7 t, x& n9 p
- server.send(200, "text/html", serverIndex);
# i+ c# V) E% }& i# b2 U - });
$ `$ L8 R& {# E7 J1 | - server.on("/update", HTTP_POST, [](){1 Y9 Z6 J1 ^. v+ _
- server.sendHeader("Connection", "close");
: c9 [* O; X( t9 b: o ] - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 V& Q( J4 I$ D
- ESP.restart();" ~9 ?" C1 m" r$ V1 B
- },[](){4 c0 q/ @9 e7 l! m$ K' x
- HTTPUpload& upload = server.upload();
0 _/ }5 }) z c) n- C8 `0 f - if(upload.status == UPLOAD_FILE_START){5 i( \0 g1 |/ h5 N- B. D3 f: s- B
- Serial.setDebugOutput(true);/ A. z: [& j- \) E
- Serial.printf("Update: %s\n", upload.filename.c_str());
& a) Z/ w( s! z6 h7 R - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 A6 \; c i) D( y/ W* U6 h
- if(!Update.begin(maxSketchSpace)){8 G$ K0 D; r5 A; B
- Update.printError(Serial);; ?( B8 J5 H/ _2 X0 v
- }
$ I) k6 ~+ Q7 t; B5 a - } else if(upload.status == UPLOAD_FILE_WRITE){
$ N7 x9 k6 u: m3 t7 P0 z - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){3 q8 w4 l+ f' g! S5 v: k: W
- Update.printError(Serial); W, i: {3 e* {# B- o" g
- }
) q) P: l! J! P( i) ? - } else if(upload.status == UPLOAD_FILE_END){) _7 j5 \5 y- d/ s
- if(Update.end(true)){! o$ `' C( p+ l: [) t1 P6 M
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);0 s; M" V3 c! T+ }
- } else {
, [- X( P5 ^' j, v' P - Update.printError(Serial);
# j* \! j+ _1 F, Q1 o7 ~$ M! j% s2 r - }
+ N K9 S5 S% `5 x U" ? - Serial.setDebugOutput(false);
/ J+ [/ ?) t1 K+ ] - }
2 G2 A, r6 P/ l8 t, s$ Y - yield();9 s# Y9 l/ ~2 @$ ` r, a
- });8 a7 D! @. `/ b% Y/ h
-
J$ o( `+ d: P& \ - digitalWrite(2,0);, V8 L. b0 @$ Q* \4 b
- mainAction();( {8 S: X# j$ M! V0 l
- if (digitalRead(0)){
( Z5 p% g$ G# x) V( a0 K - ESP.deepSleep(0);/ W+ R- h; D" S" ]
- } else {
# t$ C1 Z5 m" ]5 _ - server.begin();
% B# R3 j" [5 y, v2 {' ? - }
7 W4 d6 R" r9 y1 J. r6 `- j - }
8 w# L Z$ ]* z9 [0 P - void loop() {3 a! C( @7 _# B" W* n
- server.handleClient();
! }! u* c2 F' J9 a( R6 m2 p3 V - delay(1);- T0 s4 L& {" {% l4 N
- }3 h# J6 `7 [, d: I: A% p+ J
- String doGet(String url){* j& ]5 B z* E: s- P0 J( w
- if ((WiFiMulti.run() == WL_CONNECTED)) {
3 E: c; a# g2 \8 A* j8 Z5 b$ E/ b - HTTPClient http;
, ]5 v5 @& n, a4 Q. ^" R - Serial.println("[HTTP] begin...");
+ [! P7 H- t, K, x3 M4 H) { - if (url.startsWith("https")) {- `9 N8 t, Q4 p6 p! P; O
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
3 Q1 R' L' \5 N# E - } else {+ F) p: S7 U ]+ ^3 M
- http.begin(url);" g' Z/ |3 U: m% a# b) p9 I' E
- }
U7 r F( @# A) { - Serial.println("[HTTP] GET...");/ w) I2 j( |" `% B5 Q2 z% @( }
- int httpCode = http.GET();0 b6 W" k, q% ]
- if (httpCode > 0) {
7 M3 \ s- y* G/ q" g; ^: Z7 T - Serial.printf("[HTTP] code: %d\n", httpCode);/ \. D2 _0 A; c* o& s5 M
- if (httpCode == HTTP_CODE_OK) {
2 C/ E% n' N3 t; }; y - String payload = http.getString();/ M# W% W- e2 A2 G& s" p/ x
- Serial.println(payload);9 V& p! @/ _6 \; T/ v
- Serial.print("\r\n");( s( }, ?& U4 x4 L: c
- return payload;
( d' ^' I. V8 I! b7 [: f - }/ u! u4 \) k \5 a
- } else {
. w( P: z* T# q+ P/ E6 a- ^ - Serial.printf("[HTTP] GET... failed, error: %s\n",) `3 }2 F! z# ~
- http.errorToString(httpCode).c_str());
. O% s+ {. S) ?: Q: E - }
7 I- j( o6 _" L8 W" | - http.end();
5 l1 d. M) k6 y' X - return "";
- x+ T7 W; e4 ~" W( n2 Q# C6 E - }
2 g2 H' [; Y5 j0 P8 s$ S - }8 X7 K' U. v2 ~5 n/ [: `
- void mainAction() {
9 R) p. \' K6 s0 U4 k - // 发送请求
6 O0 ]- d/ a* Z* N: W: p$ B - doGet("http://google.cn");
% ~ H# Z7 C0 P2 o' a - }' G# \. C/ W+ b/ L0 O+ g+ C
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