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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)
- }1 W2 `7 r9 T* `/ _- |- #include <ESP8266HTTPClient.h># x' z0 ^0 H2 I
- #include <ESP8266WiFi.h>& U% f' h$ E2 n, x
- #include <ESP8266WiFiMulti.h>
B; w6 m& _" a6 P6 n - #include <ESP8266WebServer.h>
7 y& i) C P0 I" T0 } - #include <arduino.h>/ l) E; |" C- |4 q- i
- ESP8266WiFiMulti WiFiMulti;
5 Z" N$ L3 B6 J7 O9 X$ O' h - ESP8266WebServer server(80);% N0 Y: D5 H* v0 J
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- G5 j2 g% j$ d9 ?% t, ]; P
- ADC_MODE(ADC_VCC); w* k; g. G W$ @: e
- void setup() {
) c3 N) d# x! l$ F6 L! r: v' W - Serial.begin(115200);
0 v l% ?5 b U - Serial.print("\r\n\n");
0 r- V' i" H/ Y, k8 | - pinMode(2,OUTPUT);
1 ~! r' e5 x8 V, Y9 f V7 G - // WIFI3 ]2 \5 \& ~ A% T4 e2 I
- WiFi.mode(WIFI_STA);
; j( I& U" u; m/ @ - WiFi.hostname("Sparkle");" ~7 n5 T; W8 X: y
- WiFiMulti.addAP("wifi ssid", "wifi password");6 [) H- |, b0 X0 F d7 a
- int tryNum = 15;
9 y2 Q; `$ ]! [6 o - Serial.print("Connect WiFi");
/ O9 J/ r; X; W, M/ ` - while (WiFiMulti.run() != WL_CONNECTED) {
3 G \' @6 R" D Q$ @- [* b% E - digitalWrite(2,0);/ N& A+ e a: k% C7 k8 W+ n1 q
- delay(200);
$ P! S$ u* P1 e5 k& a - digitalWrite(2,1); F) G' f3 d, W E
- delay(300);# t/ |# s+ }- ~% ^
- Serial.print(".");- g# V: ?: n, ^0 V( e
- tryNum--;
# T8 f) ~3 e7 b+ t: D - if (tryNum == 0) {
- u6 ^+ A* O X+ O. d9 V' e - // 1min
* _! f* g& e6 l' _. J ~1 P. K6 K8 D8 t0 { - // ESP.deepSleep(60e6);
. O N0 `3 X1 G$ `3 I* U3 I& f - ESP.deepSleep(0);
d& h" p4 u' T - }9 K0 P& K+ @, a. y) ?
- }
$ Y2 y# b: H: e/ D - Serial.print("\r\n");
# ?1 p2 a1 {) V+ w) ]( M8 F" o - digitalWrite(2,1);4 L8 z$ ]" h% S s
- Serial.print("IP address : ");, m. R- W( A( n% S3 J5 L- ]
- Serial.println(WiFi.localIP());' z" ^5 S$ z* `, {; a
- server.on("/", HTTP_GET, [](){
; A! \1 t/ K# Q; y# _ - server.sendHeader("Connection", "close");
/ E, x# s9 V# X3 Q" w, V - server.send(200, "text/html", serverIndex);
- E( N$ U/ p0 v/ g+ B- r5 \ - });% f' c" \ l% }- @
- server.on("/update", HTTP_POST, [](){, X" f1 |3 ^, S9 u. C
- server.sendHeader("Connection", "close");
7 V* D" q7 E& l$ W. z) R3 n - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 O" I3 D( D& r2 P/ h3 Z: F - ESP.restart();
9 R& W# g. o5 _2 d9 c( }) ~ - },[](){
$ i- N' j! I% R* q/ I9 e' t - HTTPUpload& upload = server.upload();! C U8 m1 G1 S6 {1 G4 E( @
- if(upload.status == UPLOAD_FILE_START){
6 i) G2 `; ?# K8 M3 I/ t - Serial.setDebugOutput(true);
/ t% S+ _1 c N1 P4 m# b+ i; z( f* Y% }/ B - Serial.printf("Update: %s\n", upload.filename.c_str());
L: D: U0 h( M6 ?" a2 K6 S9 _# n - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
. I6 y4 }& D; f - if(!Update.begin(maxSketchSpace)){
3 B$ g1 F% G2 m3 @ - Update.printError(Serial);
- m% V, K) J9 ?+ j+ N* X - }
5 @' K. V3 z0 Q4 B5 R - } else if(upload.status == UPLOAD_FILE_WRITE){3 Z; b* E/ y' A( ?
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){, o+ g: o4 a6 m# D% u% ?
- Update.printError(Serial);
+ g" w( g( M) w - }
5 }2 W- A: n% i% I# W, L - } else if(upload.status == UPLOAD_FILE_END){5 J0 K# Z) {$ i; a
- if(Update.end(true)){. j8 z1 m+ s! ^# o6 X
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. R2 `7 D: m' ~6 T% s - } else {
8 {- [, n! Q7 @' O& O# V - Update.printError(Serial);
# N4 \" C) {6 S( o* l6 _ - }2 I3 D; c9 E0 c4 B3 v z
- Serial.setDebugOutput(false);
) G' {0 I/ v: _3 ] O - }! j& G* b& |' S7 t2 E. s) B
- yield();
" R9 M$ `& H; K' Z! u1 Z1 n- C2 m - });
$ K( D: U! a8 u -
2 R1 G: n& H, y0 `- a - digitalWrite(2,0);: O3 N9 O" `" Q( p
- mainAction();, P1 h/ Z" p% r
- if (digitalRead(0)){
8 W1 D$ h9 H. L4 S - ESP.deepSleep(0);
- E0 N) s$ q" t - } else {
- X7 S0 i, z! { - server.begin();
: ?7 j" l6 G) W6 u1 u! I - }' V9 G. ^4 t: G5 i
- }, p4 w. \4 L- X9 Q
- void loop() {5 n) R+ c) Z8 l, a! w) W
- server.handleClient();7 s1 Q: w1 L* S% A5 r u* Q: n
- delay(1);
: \ x6 w9 l$ _* b1 L1 `, ? - }
9 x* `3 f/ H' u# V+ | U5 g - String doGet(String url){
4 @$ U: B' _1 F6 B+ F/ c: _ - if ((WiFiMulti.run() == WL_CONNECTED)) {- @3 A- s* ?& k* @, ^% g, J
- HTTPClient http;$ X( Y4 z$ H8 n/ F: F7 `
- Serial.println("[HTTP] begin...");
$ ^8 g- G R, _1 B+ d - if (url.startsWith("https")) {
3 I: |5 N `! e! a - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");, |! p$ Z6 ~4 B5 P" {
- } else {
7 y4 C( q% ]) l( q" q+ y o6 w - http.begin(url);
" B& A* q2 L( I - }
( S" J' Q- Z# i) }2 D3 K) z - Serial.println("[HTTP] GET...");
2 `+ g) j" }! P6 Y* L - int httpCode = http.GET();# t/ A* P- @* K0 M2 B4 x
- if (httpCode > 0) {" J3 b Q7 c6 H) t: S/ }! h" H* S
- Serial.printf("[HTTP] code: %d\n", httpCode);$ X& r% w4 s. Q4 v
- if (httpCode == HTTP_CODE_OK) {
, g- [7 {) \7 @" P+ {2 S - String payload = http.getString();6 S$ ~) n( S( J
- Serial.println(payload);3 v4 w, ^ q+ }7 j& ?; i
- Serial.print("\r\n");+ d2 [7 l1 T6 y: T: s
- return payload;
0 O8 J" _, Y6 k5 N - }4 O% Y$ `$ B# f" g
- } else {* U4 J$ J3 t& Z/ K; |
- Serial.printf("[HTTP] GET... failed, error: %s\n"," R( ]& v( @, A+ T
- http.errorToString(httpCode).c_str());
1 v; x6 s* s/ O& I0 l8 V% I& ?. w - }
3 f- s& w; ]7 \" [8 m0 W - http.end();' {9 G" U. Z1 b
- return "";
, m `9 a0 Y# j - }6 K/ D' ~8 K" Z& C) B; r1 k% M* t
- }
% e! L" x) x& B9 Y, ^ - void mainAction() {
( Q/ z2 l' ]# d - // 发送请求+ }& H" {( m2 q5 z% u
- doGet("http://google.cn");7 d8 G; d" d- t+ G
- }* s7 v' W+ n5 P8 J' r0 Y
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