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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)
; I2 _7 m6 u% u0 X- v- #include <ESP8266HTTPClient.h>- e: @/ }+ Y) A2 u" j* \4 H) e
- #include <ESP8266WiFi.h>5 d4 S/ B% w0 ^- j; C" Y4 E" d
- #include <ESP8266WiFiMulti.h>
6 o) F9 e! C# a$ x5 n. o! K1 i - #include <ESP8266WebServer.h>
4 l: O1 V* ~7 A- D/ P- ]! | - #include <arduino.h>. K1 o+ h4 Z- [& U: M0 l$ i+ H( A
- ESP8266WiFiMulti WiFiMulti;
- ^, t1 ~$ z! o6 y/ U, I) ` - ESP8266WebServer server(80);
/ g9 k/ K: E# N6 ^. [1 O - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. R6 m. \* J8 Z# D - ADC_MODE(ADC_VCC);: T3 S" R8 h$ F t
- void setup() {
/ c( }* w) \" ^ - Serial.begin(115200);. D. g. j1 W/ z. W1 v
- Serial.print("\r\n\n");' W, G- \; } b% X
- pinMode(2,OUTPUT);. N8 N" Q/ O8 W/ d: _ B
- // WIFI' v+ g; F1 h5 Y8 S' }9 F
- WiFi.mode(WIFI_STA);
3 A3 q2 Q: K% ]6 H - WiFi.hostname("Sparkle");: L k( P8 {# i( w! K# U
- WiFiMulti.addAP("wifi ssid", "wifi password");1 }0 ^! @& E: \) H5 y
- int tryNum = 15;9 }9 {- u5 O8 e, V/ F
- Serial.print("Connect WiFi");, o: e8 e, A! ` k) R! n2 @7 ]
- while (WiFiMulti.run() != WL_CONNECTED) {, i9 v3 Z/ \8 r; i
- digitalWrite(2,0);, F1 D( }4 \# ~8 E u
- delay(200);0 F' W% O ^1 E5 ], V% I5 j! }3 O& w
- digitalWrite(2,1);/ V2 i0 k4 F# Z) Z
- delay(300);
' E3 ?4 t+ M3 Q5 T; }! B# m. a - Serial.print(".");
! j1 W+ v6 ~! W9 w - tryNum--;; S2 V* X; j5 D1 o( R! v3 H
- if (tryNum == 0) {0 l) l% ]" o* c1 A- f
- // 1min
c1 t/ z( a) n, G* U+ R - // ESP.deepSleep(60e6);% h9 A7 b0 g( i' k7 [) g1 @* i" Q
- ESP.deepSleep(0);
2 [1 q% k* _3 D* b/ k, i - }4 T0 C7 C* E) _% Z
- }
( q7 Q/ o, X! a$ X F& X4 \ - Serial.print("\r\n");& t! M( s1 x5 E4 e9 E' d+ g: `7 [
- digitalWrite(2,1);
1 k2 Z) p+ S( n) `9 Y5 r: |/ x - Serial.print("IP address : ");# F# q k4 M5 ]
- Serial.println(WiFi.localIP());
) z1 E8 I3 M* a: z: q - server.on("/", HTTP_GET, [](){
0 ?0 Z1 B8 w! G - server.sendHeader("Connection", "close");
- G" \$ z. v# f" O" B* f - server.send(200, "text/html", serverIndex);) }, c5 Z- h) p( p7 X
- });* E" |* }7 c$ M- u- d1 }$ h! b
- server.on("/update", HTTP_POST, [](){
% k8 \0 T* S) s/ _' D. v- p - server.sendHeader("Connection", "close");
2 Y9 G& u+ w3 z2 B! Z/ w3 k - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");0 \: {. j, r* K
- ESP.restart();
3 E! z9 M% ~( U! E5 }: @0 Y9 Q( N$ O - },[](){
7 G3 ~8 e1 A+ d0 s: I) ` - HTTPUpload& upload = server.upload();
6 t$ ?1 ~ t0 ?2 g% l( J - if(upload.status == UPLOAD_FILE_START){; k: I# H1 E5 P* M+ V7 [6 Y
- Serial.setDebugOutput(true);
4 d3 D( @; }- ]' p9 I7 T - Serial.printf("Update: %s\n", upload.filename.c_str());
+ a* M8 I: I3 ]. r4 X/ P - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 H1 W* D: a7 B$ z2 j
- if(!Update.begin(maxSketchSpace)){3 r2 y& K$ R6 V5 e8 \+ t8 V: r( r
- Update.printError(Serial);, ?6 {7 f0 G+ J4 h; W0 F5 \' n) S
- }0 S6 I$ {- ~8 G% J
- } else if(upload.status == UPLOAD_FILE_WRITE){
. X# ^( r% ?4 z& J3 j1 g - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 D8 _0 d# |# z: E& t$ L - Update.printError(Serial);
* ?% P4 j) ?8 I* g! j8 b. |5 u - }
4 ~3 i$ _! D; w* R: z! T$ v0 @ - } else if(upload.status == UPLOAD_FILE_END){# |2 K/ V) k x# V6 M2 ~
- if(Update.end(true)){2 x; l2 _, o+ q, A
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) G$ E7 p4 ^6 |/ m% V { - } else {
2 V5 M+ m# P6 l8 d; @ - Update.printError(Serial);6 j% E6 z9 w4 N0 z% Z# S6 p
- }
# g6 M& q7 q; n2 m! S- ^ - Serial.setDebugOutput(false);
, g9 K }, G- E+ v" k. m - }5 Z# n$ l2 T# B. Y/ _4 n7 ?
- yield();) r! S* v1 h j& d% a& i
- });
4 f C$ Q; C* m - & {4 N: ]1 ?2 G& p) |5 w
- digitalWrite(2,0);
* m) z/ }' `3 K- x4 p; Z# ] - mainAction();+ b. [0 j: Q. @1 m q
- if (digitalRead(0)){/ S9 b: c9 Z4 j, S7 L5 f
- ESP.deepSleep(0);
( Y6 M, v9 n8 r/ h) Q$ m0 q4 z' P - } else {
- g" z1 B% C3 K- x# S - server.begin();
9 N% p4 c% ^. m - }
, }. f" K9 v1 H i x6 k* x5 K1 j* S - }8 D0 w7 Z- d+ r6 X! [8 ^" R! P
- void loop() {
8 x$ x' O8 O; w! N - server.handleClient();
' o8 e% e; s' j8 Z4 b - delay(1); {: U) _; q/ N8 u+ ~
- }3 k5 ^# |! |, N
- String doGet(String url){; ~* i5 d! E8 ~* w) B
- if ((WiFiMulti.run() == WL_CONNECTED)) {5 e: n/ {* w% w h6 p2 A! Y
- HTTPClient http;
) B% M1 t" j- a g4 M - Serial.println("[HTTP] begin...");! Z! S0 k4 ]* i6 n' p+ w0 k
- if (url.startsWith("https")) {1 N9 p3 w$ h& F, Y
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
# E7 m4 y" S0 t: e - } else {8 A0 Z6 F3 C. F. \) R/ V
- http.begin(url);
3 c6 Q! n3 I9 [1 O! [$ X - }+ Y1 R+ S& I! p' t" c
- Serial.println("[HTTP] GET...");
) E: T0 V6 M: Q m6 G - int httpCode = http.GET();; O6 M+ V! |( u' n* i1 g% R
- if (httpCode > 0) {- `! R$ W+ ~0 T9 [) S
- Serial.printf("[HTTP] code: %d\n", httpCode);
' k/ Y6 P" ^$ Z) Z& P" A - if (httpCode == HTTP_CODE_OK) {( G+ V' I$ W; J
- String payload = http.getString();
/ ^+ i! W% b; p - Serial.println(payload);9 X3 I1 @2 X- @; f% T4 P
- Serial.print("\r\n");8 s/ c! r5 g& l# y' f- L Z; i
- return payload;
+ o* \; Z% I' [0 A5 B8 Q& H# @0 F - }
: [0 M+ `0 C j9 K9 c4 J4 P8 L - } else {5 ?1 m8 s; P" [3 `# v
- Serial.printf("[HTTP] GET... failed, error: %s\n",
7 m" g/ m( _7 X# C; _' @' Y - http.errorToString(httpCode).c_str());
\4 t" G( {% Y3 d' z - }
2 ~) A9 p- j, i) r% j2 i - http.end();
6 L& Q! Q0 U$ V5 d" ] q - return "";( y& G+ N. p+ ?' k N$ u
- }( l d7 @9 z$ s$ c( s# W' ^; ]- u; q
- }
1 C! i4 a, f$ p: o4 G3 ?. {' F - void mainAction() {
: ^6 R9 L* y" g, Y2 c - // 发送请求; D- X J. F6 B6 H% D* m4 A& B
- doGet("http://google.cn");7 x4 O2 t, f! s- z" u
- }
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