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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)
% w8 P0 q" u. b3 r- J( X- #include <ESP8266HTTPClient.h>
4 g, r# z! Z5 A" @ - #include <ESP8266WiFi.h>2 W: q: K: D% U+ r: q( L
- #include <ESP8266WiFiMulti.h>: f$ O X# {- E
- #include <ESP8266WebServer.h>
3 z d, V1 l4 ~5 s) s& C* T" B- w - #include <arduino.h>) U4 e& l: u4 A0 q3 ?
- ESP8266WiFiMulti WiFiMulti;
8 k1 ^- M- u- [9 J' S. N - ESP8266WebServer server(80);
0 d; Y# P5 K: B2 d6 Z# H, P - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! d$ e' E: F/ v% A/ b2 Q$ _+ @
- ADC_MODE(ADC_VCC);
: @0 ^) p7 c: y5 S0 K - void setup() {- n( U/ B4 L# P1 k3 ]2 m( l
- Serial.begin(115200);4 o( u+ c9 x1 |2 s% I( Q
- Serial.print("\r\n\n");2 j: b+ `1 |- u2 E* U
- pinMode(2,OUTPUT);1 \: k. o: l( d: L9 H2 I% x
- // WIFI/ ^& X0 U9 T5 i$ `& m" E
- WiFi.mode(WIFI_STA);2 p% i" K0 g; f
- WiFi.hostname("Sparkle");* w# ] _+ j3 u( {; a
- WiFiMulti.addAP("wifi ssid", "wifi password");( c# r! g1 f6 D' |3 k
- int tryNum = 15;
! @' N |5 u) X - Serial.print("Connect WiFi");
( Z" J4 F! Q( ?5 g" F# B1 J - while (WiFiMulti.run() != WL_CONNECTED) {3 f, R& W' m& \. _ z3 h: d& g
- digitalWrite(2,0);3 ]5 @+ g/ k- J& \# g
- delay(200);
# ?8 h5 n6 n, O* F! x* R - digitalWrite(2,1);
% }( F, w9 b) d& ` - delay(300);8 M# c4 F; k" l: e3 v6 f& _
- Serial.print(".");
: {) p. G* k9 z3 j/ e, }* T% \ - tryNum--;
! ]! {) s- p3 v4 q& f; j - if (tryNum == 0) {
6 e- x+ y& h) N; Z Q% V* l - // 1min; c( Q6 \, z$ |: A/ H U3 y8 j
- // ESP.deepSleep(60e6);
# }/ y' O8 F+ s1 ]! F - ESP.deepSleep(0);1 W B! g- G& Z* W f3 `. T
- }, ~! i, ?5 P! D ?: y( e/ n% @
- }
( C, g8 X) A$ B: f3 h9 U7 N/ w - Serial.print("\r\n");6 n4 N& ?/ d1 d: H
- digitalWrite(2,1);
$ G& a- j) ~; t" I3 B. F" N - Serial.print("IP address : ");5 ?$ @7 z! O( Z5 S/ t5 k
- Serial.println(WiFi.localIP());* y; g! A0 n* a
- server.on("/", HTTP_GET, [](){* N% ^1 H V6 `; {7 `8 t+ w
- server.sendHeader("Connection", "close");. f$ m* C( j+ J& P
- server.send(200, "text/html", serverIndex);& I8 }3 k& ~: M; o' \8 C- H
- });' l8 W3 @0 l4 a0 h1 Z3 C" X) ~8 U
- server.on("/update", HTTP_POST, [](){
' X5 A; `& D2 U: t) p1 w - server.sendHeader("Connection", "close");
( d8 I, [# c/ C. a! E3 s - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* o0 g" n. _! z' F! D7 c x - ESP.restart();( `/ T2 r& `4 ?0 c$ `" b. J& q0 v3 o M2 d
- },[](){
! ^* ^ j" K1 D4 H g6 Y* b - HTTPUpload& upload = server.upload();
) h4 ]4 C) K h7 S8 I$ ` H - if(upload.status == UPLOAD_FILE_START){1 B5 H& ], N2 H" e- O
- Serial.setDebugOutput(true);
3 k j7 x9 b5 l) Q5 o* t) H- U& M - Serial.printf("Update: %s\n", upload.filename.c_str());
3 I- v: i5 \) r: { - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
8 J7 S" m$ n) b8 ~4 ]/ \& D1 Y - if(!Update.begin(maxSketchSpace)){
+ J* ?) A4 |0 ?, }- k - Update.printError(Serial);
# |! N4 s7 K, n7 F3 z - }4 Q( N/ g/ E; q: m& N
- } else if(upload.status == UPLOAD_FILE_WRITE){
$ m0 O+ q/ P) p1 z& F& A - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){; \! T# ?- w( t* \! j3 v
- Update.printError(Serial);
7 d' y; h s) ~# J- u8 d) s4 A, { - }+ c- w; L1 E% G' ~. M/ B
- } else if(upload.status == UPLOAD_FILE_END){
u% \4 ^/ N3 A: m& w; c - if(Update.end(true)){. z ?; S7 f0 w) z6 J
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
$ n) R) a2 a2 H% q - } else {' }4 S- y( Z' z- V2 Q1 W
- Update.printError(Serial);- f# R8 G0 D3 {( k6 L2 V
- }( o6 `( a/ u3 E
- Serial.setDebugOutput(false);
) P: A% x6 D! @# K - }. N; ^6 n2 @# D2 g
- yield();" | h4 a/ \1 Y9 P
- });
7 @. h1 k0 E0 R' o. Y -
, h( y) Z- ?3 f - digitalWrite(2,0);8 ~3 m+ Z- E h
- mainAction();
: G2 U: Z3 E: r, m - if (digitalRead(0)){
s5 t7 ^. Y4 l2 U$ ]2 o - ESP.deepSleep(0);
# O) w4 J7 |- I, m3 F% M y, b - } else {! @1 E5 Z ^7 B, I+ Y) a1 b. Z: w4 O! j
- server.begin();
0 ]6 G- c9 n, G' ^ - }
0 D7 M8 G+ U9 B5 V6 d3 v, ~ - }3 ?: ] [* v$ V9 G
- void loop() {' T' g5 e( z8 e9 |9 w( ?! m* n
- server.handleClient();
0 ?; R) ?/ \, W# f - delay(1);
9 K+ _. ?: V7 r8 `2 y - }
0 v# O7 t$ S0 k - String doGet(String url){
0 P/ N3 O9 \7 `; U$ E9 F; ~ - if ((WiFiMulti.run() == WL_CONNECTED)) {
" [$ q% t- o- b. `0 }7 f* V/ _ - HTTPClient http;
+ i2 P1 k! ?6 K/ `5 p5 r) N# X2 a - Serial.println("[HTTP] begin...");
) M% x4 F0 d4 y' Q - if (url.startsWith("https")) {
# D4 X( ^; M* Z6 G2 t - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
: I+ V8 c% b9 I# y - } else {1 K1 |4 d) J) J" p
- http.begin(url);
: o6 Z4 b, {4 k. v( ]8 [ - }' ]' R( k4 }0 A+ R
- Serial.println("[HTTP] GET...");
/ i" m2 |# r) R& U! H - int httpCode = http.GET();
2 @, C) F' u" F - if (httpCode > 0) {
% [9 G( w: r& r: Q: q: {$ g' R) [ - Serial.printf("[HTTP] code: %d\n", httpCode);1 k) j. t9 S7 O1 E# \4 Z4 L
- if (httpCode == HTTP_CODE_OK) {6 |, k1 J* U0 }' y
- String payload = http.getString();
, F5 i, O( c+ u+ v - Serial.println(payload);8 \' H4 e' c: }1 N3 ~" y
- Serial.print("\r\n");, B1 ?# C" a9 d5 M
- return payload;* C/ S: q& g9 a2 T6 `
- }
* d4 p7 v" @5 j8 S& \; ` - } else {
9 R; c4 O8 z& @, J - Serial.printf("[HTTP] GET... failed, error: %s\n",
. |% U/ B4 V4 H9 W1 W/ @ - http.errorToString(httpCode).c_str());7 b' [2 o, Q: \, a. J) j
- }
0 x, Q5 d B$ K1 c8 b5 `" ^ - http.end();
: ?/ P4 e0 H" K" P - return "";
; V. P- u2 j$ B2 `8 c/ N0 W - }
# x4 I5 n, O ?* y7 U+ {9 c2 y - } z) O3 X9 G; d. R' |% a7 k1 Q
- void mainAction() {
; H$ W5 ~- Z' p% |; R' H: | ?3 W - // 发送请求' j! P* \$ V' z: a9 u% o* E2 s' E
- doGet("http://google.cn");0 n5 D! |3 t: ^2 Q- P$ I$ @
- }& \$ f- k! t( \
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